| فارسی | pes-000 |
| سخت | |
| Afrikaans | afr-000 | moeilik |
| Englisce sprǣc | ang-000 | earfoþe |
| العربية | arb-000 | الاصرار |
| العربية | arb-000 | الزمن |
| العربية | arb-000 | القبر |
| العربية | arb-000 | القرحت |
| العربية | arb-000 | المتانق |
| العربية | arb-000 | المرض |
| العربية | arb-000 | بشدت |
| العربية | arb-000 | ثقيل |
| العربية | arb-000 | جدي |
| العربية | arb-000 | حاد |
| العربية | arb-000 | خانق |
| العربية | arb-000 | دبق |
| العربية | arb-000 | صارم |
| العربية | arb-000 | صخري |
| العربية | arb-000 | صعب |
| العربية | arb-000 | صلب |
| العربية | arb-000 | صَعْب |
| العربية | arb-000 | عنيد |
| العربية | arb-000 | عنيف |
| العربية | arb-000 | قاسي |
| العربية | arb-000 | قوي |
| العربية | arb-000 | لا يقاوم |
| العربية | arb-000 | لا يقهر |
| العربية | arb-000 | لايطاق |
| العربية | arb-000 | متجهم |
| العربية | arb-000 | متشدد |
| العربية | arb-000 | متصلب |
| العربية | arb-000 | مزعج |
| العربية | arb-000 | مزمن |
| العربية | arb-000 | مقرن |
| العربية | arb-000 | هايل |
| luenga aragonesa | arg-000 | dificil |
| luenga aragonesa | arg-000 | difízil |
| luenga aragonesa | arg-000 | fatigoso |
| المغربية | ary-000 | واعر |
| asturianu | ast-000 | cansín |
| asturianu | ast-000 | dificultosu |
| asturianu | ast-000 | difícil |
| asturianu | ast-000 | fatigosu |
| Arabic-script Eastern Libyan Arabic | ayl-000 | واعر |
| azərbaycanca | azj-000 | çətin |
| башҡорт теле | bak-000 | ауыр |
| башҡорт теле | bak-000 | ҡыйын |
| boarisch | bar-000 | hoat |
| boarisch | bar-000 | håt |
| беларуская | bel-000 | тру́дны |
| беларуская | bel-000 | ця́жкі |
| বাংলা | ben-000 | কঠিন |
| བོད་སྐད་ | bod-000 | ཁག་པོ |
| བོད་སྐད་ | bod-000 | དཀའ་ངལ་ཅན |
| བོད་སྐད་ | bod-000 | དཀའ་མོ |
| བོད་སྐད་ | bod-000 | དཀའ་ལས་ཁག་པོ |
| brezhoneg | bre-000 | start |
| български | bul-000 | изпънат |
| български | bul-000 | мъ́чен |
| български | bul-000 | мъчен |
| български | bul-000 | недостъпен |
| български | bul-000 | обтегнат |
| български | bul-000 | опънат |
| български | bul-000 | стръмен |
| български | bul-000 | те́жък |
| български | bul-000 | тежък |
| български | bul-000 | тру́ден |
| български | bul-000 | труден |
| български | bul-000 | усилен |
| català | cat-000 | ardu |
| català | cat-000 | complicat |
| català | cat-000 | crònic |
| català | cat-000 | difícil |
| català | cat-000 | dur |
| català | cat-000 | empedreït |
| català | cat-000 | engavanyador |
| català | cat-000 | estricte |
| català | cat-000 | fatigós |
| català | cat-000 | formal |
| català | cat-000 | formidable |
| català | cat-000 | greu |
| català | cat-000 | habitual |
| català | cat-000 | perillós |
| català | cat-000 | rigurós |
| català | cat-000 | seriós |
| català | cat-000 | sever |
| català | cat-000 | solemne |
| català | cat-000 | temible |
| Chamicuro | ccc-000 | yeewa |
| binisayang Sinugboanon | ceb-000 | lisud |
| čeština | ces-000 | krušný |
| čeština | ces-000 | lopotný |
| čeština | ces-000 | obtížný |
| čeština | ces-000 | pracný |
| čeština | ces-000 | těžký |
| čeština | ces-000 | úmorný |
| ᏣᎳᎩ ᎧᏬᏂᎯᏍᏗ | chr-000 | ᎤᏦᏍᏗ |
| ѩзыкъ словѣньскъ | chu-000 | тѧжъкъ |
| ѩзыкъ словѣньскъ | chu-000 | тѩжькъ |
| 普通话 | cmn-000 | 严肃的 |
| 普通话 | cmn-000 | 凶猛的 |
| 普通话 | cmn-000 | 困难 |
| 普通话 | cmn-000 | 庄重的 |
| 普通话 | cmn-000 | 拉紧的 |
| 普通话 | cmn-000 | 狂暴的 |
| 普通话 | cmn-000 | 猛烈的 |
| 普通话 | cmn-000 | 简朴的 |
| 普通话 | cmn-000 | 简陋的 |
| 普通话 | cmn-000 | 紧的 |
| 普通话 | cmn-000 | 紧绷的 |
| 普通话 | cmn-000 | 艰巨 |
| 普通话 | cmn-000 | 艰难 |
| 普通话 | cmn-000 | 辛 |
| 普通话 | cmn-000 | 辛劳 |
| 普通话 | cmn-000 | 辛苦 |
| 普通话 | cmn-000 | 难 |
| 普通话 | cmn-000 | 难捱 |
| 國語 | cmn-001 | 厲害 |
| 國語 | cmn-001 | 嚴重 |
| 國語 | cmn-001 | 困難 |
| 國語 | cmn-001 | 困難的 |
| 國語 | cmn-001 | 密 |
| 國語 | cmn-001 | 激 |
| 國語 | cmn-001 | 艱巨 |
| 國語 | cmn-001 | 艱難 |
| 國語 | cmn-001 | 艱難的 |
| 國語 | cmn-001 | 辛 |
| 國語 | cmn-001 | 辛勞 |
| 國語 | cmn-001 | 辛苦 |
| 國語 | cmn-001 | 鐵 |
| 國語 | cmn-001 | 難 |
| 國語 | cmn-001 | 難捱 |
| Hànyǔ | cmn-003 | jiān ju |
| Hànyǔ | cmn-003 | kunnan |
| Hànyǔ | cmn-003 | kùnnán |
| Hànyǔ | cmn-003 | nan |
| Hànyǔ | cmn-003 | nán ai |
| Hànyǔ | cmn-003 | xin |
| Hànyǔ | cmn-003 | xīn lao |
| Qırımtatar tili | crh-000 | qıyın |
| Qırımtatar tili | crh-000 | zor |
| Cymraeg | cym-000 | anodd |
| Cymraeg | cym-000 | caled |
| dansk | dan-000 | stram |
| dansk | dan-000 | vanskelig |
| dansk | dan-000 | vanskeligt |
| Deutsch | deu-000 | aufreibend |
| Deutsch | deu-000 | diamantartig |
| Deutsch | deu-000 | diamanthart |
| Deutsch | deu-000 | erschöpfend |
| Deutsch | deu-000 | hart |
| Deutsch | deu-000 | herausfordernd |
| Deutsch | deu-000 | kniffelig |
| Deutsch | deu-000 | kompliziert |
| Deutsch | deu-000 | mühsam |
| Deutsch | deu-000 | schwer |
| Deutsch | deu-000 | schwererziehbar |
| Deutsch | deu-000 | schwierig |
| Deutsch | deu-000 | steinhart |
| Deutsch | deu-000 | vertrackt |
| eesti | ekk-000 | keeruline |
| ελληνικά | ell-000 | δίσκολος |
| ελληνικά | ell-000 | δύσκολος |
| ελληνικά | ell-000 | δύσκολος-η-ο |
| ελληνικά | ell-000 | επίπονος |
| English | eng-000 | arduous |
| English | eng-000 | austere |
| English | eng-000 | backbreaking |
| English | eng-000 | chronic |
| English | eng-000 | continuing |
| English | eng-000 | dangerous |
| English | eng-000 | difficult |
| English | eng-000 | exacting |
| English | eng-000 | exhausting |
| English | eng-000 | formidable |
| English | eng-000 | grave |
| English | eng-000 | grievous |
| English | eng-000 | gruelling |
| English | eng-000 | hard |
| English | eng-000 | hot |
| English | eng-000 | hot-making |
| English | eng-000 | inveterate |
| English | eng-000 | laborious |
| English | eng-000 | labourious |
| English | eng-000 | laboursome |
| English | eng-000 | life-threatening |
| English | eng-000 | painstaking |
| English | eng-000 | punishing |
| English | eng-000 | raging |
| English | eng-000 | redoubtable |
| English | eng-000 | rigorous |
| English | eng-000 | sedate |
| English | eng-000 | serious |
| English | eng-000 | severe |
| English | eng-000 | sober |
| English | eng-000 | solemn |
| English | eng-000 | stark |
| English | eng-000 | stern |
| English | eng-000 | strict |
| English | eng-000 | stringent |
| English | eng-000 | tense |
| English | eng-000 | tight |
| English | eng-000 | tireful |
| English | eng-000 | toilsome |
| English | eng-000 | undownable |
| English | eng-000 | unmanageable |
| English | eng-000 | unnerving |
| English | eng-000 | wearisome |
| Esperanto | epo-000 | akra |
| Esperanto | epo-000 | diamanteca |
| Esperanto | epo-000 | ellaciga |
| Esperanto | epo-000 | forte |
| Esperanto | epo-000 | klopoda |
| Esperanto | epo-000 | laborega |
| Esperanto | epo-000 | laboriga |
| Esperanto | epo-000 | laborpostula |
| Esperanto | epo-000 | malfacila |
| Esperanto | epo-000 | malmola |
| Esperanto | epo-000 | streĉiga |
| Esperanto | epo-000 | ŝvitiga |
| euskara | eus-000 | nekagarri |
| euskara | eus-000 | nekez |
| euskara | eus-000 | zail |
| føroyskt | fao-000 | illur |
| føroyskt | fao-000 | ringur |
| føroyskt | fao-000 | strævin |
| føroyskt | fao-000 | torførur |
| føroyskt | fao-000 | virkin |
| suomi | fin-000 | ainainen |
| suomi | fin-000 | ankara |
| suomi | fin-000 | askeettinen |
| suomi | fin-000 | hallitsematon |
| suomi | fin-000 | hankala |
| suomi | fin-000 | hengenvaarallinen |
| suomi | fin-000 | hillitty |
| suomi | fin-000 | hirmuinen |
| suomi | fin-000 | huolestuttava |
| suomi | fin-000 | jatkuva |
| suomi | fin-000 | juhlallinen |
| suomi | fin-000 | jyrkkä |
| suomi | fin-000 | jännittynyt |
| suomi | fin-000 | karu |
| suomi | fin-000 | kiihkeä |
| suomi | fin-000 | kiivas |
| suomi | fin-000 | kimurantti |
| suomi | fin-000 | kireä |
| suomi | fin-000 | kolkko |
| suomi | fin-000 | koruton |
| suomi | fin-000 | kova |
| suomi | fin-000 | paha |
| suomi | fin-000 | pelottava |
| suomi | fin-000 | piintynyt |
| suomi | fin-000 | pingottunut |
| suomi | fin-000 | pitkällinen |
| suomi | fin-000 | rasittava |
| suomi | fin-000 | raudanluja |
| suomi | fin-000 | rauhallinen |
| suomi | fin-000 | rautainen |
| suomi | fin-000 | tiukka |
| suomi | fin-000 | totinen |
| suomi | fin-000 | tuhoisa |
| suomi | fin-000 | tyyni |
| suomi | fin-000 | työläs |
| suomi | fin-000 | uuvuttava |
| suomi | fin-000 | vaarallinen |
| suomi | fin-000 | vaatimaton |
| suomi | fin-000 | vaativa |
| suomi | fin-000 | vaikea |
| suomi | fin-000 | vakava |
| séliš | fla-000 | tiltiligut |
| français | fra-000 | ardu |
| français | fra-000 | austère |
| français | fra-000 | chaud |
| français | fra-000 | chronique |
| français | fra-000 | considérable |
| français | fra-000 | dangereux |
| français | fra-000 | de fer |
| français | fra-000 | difficile |
| français | fra-000 | dur |
| français | fra-000 | grave |
| français | fra-000 | habituel |
| français | fra-000 | invétéré |
| français | fra-000 | malaisé |
| français | fra-000 | obstiné |
| français | fra-000 | permanent |
| français | fra-000 | perpétuel |
| français | fra-000 | peu enviable |
| français | fra-000 | poupe |
| français | fra-000 | raide |
| français | fra-000 | redoutable |
| français | fra-000 | rigoureux |
| français | fra-000 | sobre |
| français | fra-000 | solennel |
| français | fra-000 | sérieux |
| français | fra-000 | sévère |
| français | fra-000 | temps |
| français | fra-000 | tombe |
| français | fra-000 | énervant |
| Frysk | fry-000 | slim |
| Frysk | fry-000 | swier |
| Gàidhlig | gla-000 | cruaidh |
| Gàidhlig | gla-000 | doirbh |
| Gàidhlig | gla-000 | duilich |
| Gàidhlig | gla-000 | mì-fhurasda |
| Gàidhlig | gla-000 | trom |
| Gaeilge | gle-000 | deacair |
| galego | glg-000 | difícil |
| galego | glg-000 | estrito |
| galego | glg-000 | inveterado |
| galego | glg-000 | tenso |
| yn Ghaelg | glv-000 | creoi |
| yn Ghaelg | glv-000 | doillee |
| yn Ghaelg | glv-000 | mooar |
| yn Ghaelg | glv-000 | neuaashagh |
| yn Ghaelg | glv-000 | trome |
| ἑλληνικὴ γλῶττα | grc-000 | δυσχερής |
| ἑλληνικὴ γλῶττα | grc-000 | χαλεπός |
| ἑλληνικὴ γλῶττα | grc-000 | ἐργώδης |
| ગુજરાતી | guj-000 | કઠિન |
| kreyòl ayisyen | hat-000 | difisil |
| Српскохрватски | hbs-000 | тежак |
| Srpskohrvatski | hbs-001 | težak |
| עברית | heb-000 | מסובך |
| עברית | heb-000 | קשה |
| עִברִית | heb-003 | חֲמוּר-סֵבֶר |
| עִברִית | heb-003 | חָמוּר |
| עִברִית | heb-003 | רְצִינִי |
| हिन्दी | hin-000 | कठिन |
| हिन्दी | hin-000 | मुशकिल |
| हिन्दी | hin-000 | मुश्किल |
| हिन्दी | hin-000 | विकट |
| hiMxI | hin-004 | atala |
| hiMxI | hin-004 | lajjAjanaka |
| hiMxI | hin-004 | xuRkara |
| hrvatski | hrv-000 | mukotrpan |
| hrvatski | hrv-000 | napet |
| hrvatski | hrv-000 | teško |
| hrvatski | hrv-000 | zategnut |
| hornjoserbšćina | hsb-000 | ćežki |
| magyar | hun-000 | döglesztõ |
| magyar | hun-000 | fárasztó |
| magyar | hun-000 | kimerítő |
| magyar | hun-000 | megerőltető |
| magyar | hun-000 | nehéz |
| արևելահայերեն | hye-000 | ադամանդյա |
| արևելահայերեն | hye-000 | աշխատատար |
| արևելահայերեն | hye-000 | բարդ |
| արևելահայերեն | hye-000 | դժվար |
| արևելահայերեն | hye-000 | զոռ |
| արևելահայերեն | hye-000 | ծանր |
| արևելահայերեն | hye-000 | ծանր աշխատանք պահանջող |
| արևելահայերեն | hye-000 | ծանր դժվար |
| արևելահայերեն | hye-000 | տքնաջան |
| արևելահայերեն | hye-000 | քրտնաջան |
| Ido | ido-000 | desfacila |
| interlingua | ina-000 | difficile |
| bahasa Indonesia | ind-000 | berat |
| bahasa Indonesia | ind-000 | bergelora |
| bahasa Indonesia | ind-000 | betul-betul |
| bahasa Indonesia | ind-000 | bogel |
| bahasa Indonesia | ind-000 | genting |
| bahasa Indonesia | ind-000 | gondol |
| bahasa Indonesia | ind-000 | jegang |
| bahasa Indonesia | ind-000 | kejang |
| bahasa Indonesia | ind-000 | keras |
| bahasa Indonesia | ind-000 | ketat |
| bahasa Indonesia | ind-000 | kosong |
| bahasa Indonesia | ind-000 | kronik |
| bahasa Indonesia | ind-000 | memarak |
| bahasa Indonesia | ind-000 | membadai |
| bahasa Indonesia | ind-000 | menakutkan |
| bahasa Indonesia | ind-000 | mengagumkan |
| bahasa Indonesia | ind-000 | menggentarkan |
| bahasa Indonesia | ind-000 | menggerunkan |
| bahasa Indonesia | ind-000 | muskil |
| bahasa Indonesia | ind-000 | payah |
| bahasa Indonesia | ind-000 | perlu banyak tenaga |
| bahasa Indonesia | ind-000 | regang |
| bahasa Indonesia | ind-000 | rumit |
| bahasa Indonesia | ind-000 | rumpil |
| bahasa Indonesia | ind-000 | runyam |
| bahasa Indonesia | ind-000 | sangat meletihkan |
| bahasa Indonesia | ind-000 | sarit |
| bahasa Indonesia | ind-000 | senting |
| bahasa Indonesia | ind-000 | serius |
| bahasa Indonesia | ind-000 | sukar |
| bahasa Indonesia | ind-000 | sulit |
| bahasa Indonesia | ind-000 | susah |
| bahasa Indonesia | ind-000 | tegang |
| bahasa Indonesia | ind-000 | teguh |
| bahasa Indonesia | ind-000 | terik |
| bahasa Indonesia | ind-000 | teruk |
| bahasa Indonesia | ind-000 | tidak fleksible |
| íslenska | isl-000 | erfitt |
| íslenska | isl-000 | erfið |
| íslenska | isl-000 | erfiður |
| íslenska | isl-000 | lýjandi |
| íslenska | isl-000 | strembinn |
| íslenska | isl-000 | vandur |
| íslenska | isl-000 | þungur |
| italiano | ita-000 | adamantino |
| italiano | ita-000 | ardua |
| italiano | ita-000 | arduo |
| italiano | ita-000 | difficile |
| italiano | ita-000 | difficoltosa |
| italiano | ita-000 | difficoltoso |
| italiano | ita-000 | duro |
| italiano | ita-000 | faticoso |
| italiano | ita-000 | ferreo |
| italiano | ita-000 | grave |
| italiano | ita-000 | imbarazzante |
| italiano | ita-000 | indaginoso |
| italiano | ita-000 | massacrante |
| italiano | ita-000 | serio |
| italiano | ita-000 | teso |
| 日本語 | jpn-000 | いかめしい |
| 日本語 | jpn-000 | こちこち |
| 日本語 | jpn-000 | こちんこちん |
| 日本語 | jpn-000 | すばらしい |
| 日本語 | jpn-000 | やばい |
| 日本語 | jpn-000 | 儼乎たる |
| 日本語 | jpn-000 | 冷厳 |
| 日本語 | jpn-000 | 危い |
| 日本語 | jpn-000 | 危うい |
| 日本語 | jpn-000 | 危ない |
| 日本語 | jpn-000 | 危険 |
| 日本語 | jpn-000 | 厳か |
| 日本語 | jpn-000 | 厳しい |
| 日本語 | jpn-000 | 厳たる |
| 日本語 | jpn-000 | 厳めしい |
| 日本語 | jpn-000 | 厳峻 |
| 日本語 | jpn-000 | 厳格 |
| 日本語 | jpn-000 | 厳重 |
| 日本語 | jpn-000 | 困難 |
| 日本語 | jpn-000 | 大事な |
| 日本語 | jpn-000 | 大変 |
| 日本語 | jpn-000 | 峻厳 |
| 日本語 | jpn-000 | 峻峭 |
| 日本語 | jpn-000 | 常習的 |
| 日本語 | jpn-000 | 手厳しい |
| 日本語 | jpn-000 | 抜群 |
| 日本語 | jpn-000 | 桁はずれ |
| 日本語 | jpn-000 | 気難しい |
| 日本語 | jpn-000 | 深刻 |
| 日本語 | jpn-000 | 激しい |
| 日本語 | jpn-000 | 謹厳 |
| 日本語 | jpn-000 | 酷しい |
| 日本語 | jpn-000 | 重大 |
| 日本語 | jpn-000 | 難しい |
| ಕನ್ನಡ | kan-000 | ಕಟ್ |
| ქართული | kat-000 | მძიმე |
| ქართული | kat-000 | რთული |
| ქართული | kat-000 | ძნელი |
| қазақ | kaz-000 | ауыр |
| қазақ | kaz-000 | қиын |
| Khunsari | kfm-000 | došxar |
| Khasi | kha-000 | bashitom |
| монгол | khk-000 | бэрх |
| монгол | khk-000 | хүнд хэцүү |
| ភាសាខ្មែរ | khm-000 | ពិបាក |
| кыргыз | kir-000 | кыйын |
| кыргыз | kir-000 | оор |
| كورمانجى | kmr-002 | زهحمهت |
| كورمانجى | kmr-002 | سهخت |
| كورمانجى | kmr-002 | گران |
| 한국어 | kor-000 | 견고 무비한 |
| 한국어 | kor-000 | 곤란한 |
| 한국어 | kor-000 | 금강석 같은 |
| 한국어 | kor-000 | 몹시 힘드는 |
| 한국어 | kor-000 | 어렵다 |
| 한국어 | kor-000 | 철석같은 |
| 한국어 | kor-000 | 힘들다 |
| ລາວ | lao-000 | ຍາກ |
| latine | lat-000 | arduus |
| latine | lat-000 | difficilis |
| latine | lat-000 | laboriosus |
| latine | lat-000 | labōriōsus |
| Limburgs | lim-000 | helle |
| lietuvių | lit-000 | keblumas |
| lietuvių | lit-000 | sudėtingas |
| lietuvių | lit-000 | sunki |
| lietuvių | lit-000 | sunkiai sukalbamas |
| lietuvių | lit-000 | sunkus |
| Lumbaart | lmo-006 | düür |
| latviešu | lvs-000 | grūts |
| latviešu | lvs-000 | sarežģīts |
| latviešu | lvs-000 | smags |
| मराठी | mar-000 | कठिण |
| македонски | mkd-000 | мачен |
| македонски | mkd-000 | тежок |
| Malti | mlt-000 | diffiċli |
| reo Māori | mri-000 | papatoiake |
| lhéngua mirandesa | mwl-000 | defícel |
| မြန်မာဘာသာ | mya-000 | ခက် |
| မြန်မာဘာသာ | mya-000 | ခဲယဉ်း |
| 台灣話 | nan-000 | khùn-lân |
| 台灣話 | nan-000 | 困难 |
| 台灣話 | nan-000 | 困難 |
| 台灣話 | nan-000 | 艰苦 |
| 台灣話 | nan-000 | 艱苦 |
| napulitano | nap-000 | deffìcile |
| Diné bizaad | nav-000 | nantłʼah |
| Nederlands | nld-000 | arbeidzaam |
| Nederlands | nld-000 | bewerkelijk |
| Nederlands | nld-000 | difficiel |
| Nederlands | nld-000 | kwalijk |
| Nederlands | nld-000 | lastig |
| Nederlands | nld-000 | moeilijk |
| Nederlands | nld-000 | moeilijk te beklimmen |
| Nederlands | nld-000 | moeizaam |
| Nederlands | nld-000 | uitputtend |
| Nederlands | nld-000 | zwaar |
| bokmål | nob-000 | pinlig |
| bokmål | nob-000 | stram |
| bokmål | nob-000 | strevsom |
| bokmål | nob-000 | vanskelig |
| occitan | oci-000 | dificil |
| occitan | oci-000 | dur |
| occitan | oci-000 | laboriós |
| occitan | oci-000 | malaisit |
| ਪੰਜਾਬੀ | pan-000 | ਕਠਿਨ |
| پښتو ژبه | pbu-000 | مشکل |
| پښتو ژبه | pbu-000 | ګران |
| فارسی | pes-000 | آرام |
| فارسی | pes-000 | ترسناک |
| فارسی | pes-000 | تند وتیز |
| فارسی | pes-000 | خطرناک |
| فارسی | pes-000 | دشوار |
| فارسی | pes-000 | سخت گیر |
| فارسی | pes-000 | سر سخت |
| فارسی | pes-000 | صعب |
| فارسی | pes-000 | محکم بسته شده |
| فارسی | pes-000 | مداوم |
| فارسی | pes-000 | مستحکم |
| فارسی | pes-000 | مشکل |
| فارسی | pes-000 | کاسد |
| فارسی | pes-000 | کینه آمیز |
| lenga piemontèisa | pms-000 | mal fé |
| polski | pol-000 | ciężki |
| polski | pol-000 | groźny |
| polski | pol-000 | mozolny |
| polski | pol-000 | rygorystyczny |
| polski | pol-000 | solenny |
| polski | pol-000 | srogi |
| polski | pol-000 | stalowy |
| polski | pol-000 | surowy |
| polski | pol-000 | trudna |
| polski | pol-000 | trudne |
| polski | pol-000 | trudny |
| polski | pol-000 | ścisły |
| polski | pol-000 | żelazny |
| português | por-000 | afanoso |
| português | por-000 | arduo |
| português | por-000 | austero |
| português | por-000 | crónico |
| português | por-000 | crônico |
| português | por-000 | de ferro |
| português | por-000 | dificultoso |
| português | por-000 | difícil |
| português | por-000 | estrito |
| português | por-000 | formidável |
| português | por-000 | formigueiro |
| português | por-000 | grave |
| português | por-000 | inveterado |
| português | por-000 | penoso |
| português | por-000 | perigosa |
| português | por-000 | perigoso |
| português | por-000 | rigoroso |
| português | por-000 | solene |
| português | por-000 | tenso |
| română | ron-000 | anevoios |
| română | ron-000 | complicat |
| română | ron-000 | dificil |
| română | ron-000 | difícil |
| română | ron-000 | greu |
| română | ron-000 | laborios |
| română | ron-000 | obositor |
| русский | rus-000 | напряж |
| русский | rus-000 | тру́дный |
| русский | rus-000 | труднодоступный |
| русский | rus-000 | трудный |
| русский | rus-000 | трудолюб |
| русский | rus-000 | тя́жкий |
| русский | rus-000 | тяжёлый |
| русский | rus-000 | утомит |
| संस्कृतम् | san-000 | अलभ्य |
| संस्कृतम् | san-000 | कठिन |
| lingua siciliana | scn-000 | diffìcili |
| Scots leid | sco-000 | thrawn |
| සිංහල | sin-000 | අමාරු |
| slovenčina | slk-000 | kostrbatý |
| slovenčina | slk-000 | neľahká |
| slovenčina | slk-000 | neľahké |
| slovenčina | slk-000 | neľahký |
| slovenčina | slk-000 | obtiažny |
| slovenčina | slk-000 | obťažné |
| slovenčina | slk-000 | pracný |
| slovenčina | slk-000 | prácny |
| slovenčina | slk-000 | ťažká |
| slovenčina | slk-000 | ťažké |
| slovenčina | slk-000 | ťažký |
| slovenščina | slv-000 | kritičen |
| slovenščina | slv-000 | kroničen |
| slovenščina | slv-000 | nevaren |
| slovenščina | slv-000 | oster |
| slovenščina | slv-000 | resen |
| slovenščina | slv-000 | resnoben |
| slovenščina | slv-000 | slovesen |
| slovenščina | slv-000 | strašen |
| slovenščina | slv-000 | strog |
| slovenščina | slv-000 | težek |
| slovenščina | slv-000 | trezen |
| slovenščina | slv-000 | ukoreninjen |
| slovenščina | slv-000 | vroč |
| slovenščina | slv-000 | zakoreninjen |
| español | spa-000 | arduo |
| español | spa-000 | crónico |
| español | spa-000 | difícil |
| español | spa-000 | duro |
| español | spa-000 | estricto |
| español | spa-000 | exigente |
| español | spa-000 | formal |
| español | spa-000 | férreo |
| español | spa-000 | grave |
| español | spa-000 | habitual |
| español | spa-000 | laborioso |
| español | spa-000 | peligroso |
| español | spa-000 | penoso |
| español | spa-000 | riguroso |
| español | spa-000 | rígido |
| español | spa-000 | serio |
| español | spa-000 | severo |
| español | spa-000 | solemne |
| español | spa-000 | temible |
| español | spa-000 | tenso |
| español | spa-000 | terrible |
| español | spa-000 | tirante |
| español | spa-000 | tremendo |
| shqip | sqi-000 | vështirë |
| sardu | srd-000 | difìtzile |
| српски | srp-000 | тешко |
| srpski | srp-001 | teško |
| Lengua de signos española | ssp-000 | ch.émacb |
| svenska | swe-000 | arbetsam |
| svenska | swe-000 | besvärlig |
| svenska | swe-000 | genant |
| svenska | swe-000 | komplicerad |
| svenska | swe-000 | mycket krävande |
| svenska | swe-000 | mödosam |
| svenska | swe-000 | pinsam |
| svenska | swe-000 | spänd |
| svenska | swe-000 | svår |
| Kiswahili | swh-000 | -gumu |
| Kiswahili | swh-000 | ngumu |
| தமிழ் | tam-000 | கடினமான |
| தமிழ் | tam-000 | கடினம் |
| татарча | tat-001 | авыр |
| татарча | tat-001 | дөшвар |
| татарча | tat-001 | кыен |
| తెలుగు | tel-000 | కఠినమైన |
| తెలుగు | tel-000 | కఠోర |
| తెలుగు | tel-000 | కష్టమైన |
| тоҷикӣ | tgk-000 | душвор |
| тоҷикӣ | tgk-000 | мушкил |
| тоҷикӣ | tgk-000 | сахт |
| Tagalog | tgl-000 | mahirap |
| ภาษาไทย | tha-000 | ฉกรรจ์ |
| ภาษาไทย | tha-000 | ซึ่งติดเป็นนิสัย |
| ภาษาไทย | tha-000 | ตึง |
| ภาษาไทย | tha-000 | ต้องใช้ความพยายามมาก |
| ภาษาไทย | tha-000 | ถึงพริกถึงขิง |
| ภาษาไทย | tha-000 | ทรหด |
| ภาษาไทย | tha-000 | มีอุปสรรค |
| ภาษาไทย | tha-000 | ยาก |
| ภาษาไทย | tha-000 | เรื้อรัง |
| ภาษาไทย | tha-000 | เหนื่อยมาก |
| ภาษาไทย | tha-000 | เหน็ดเหนื่อยมาก |
| ภาษาไทย | tha-000 | ใช้แรงงานมาก |
| türkmençe | tuk-000 | kyn |
| türkmençe | tuk-000 | müçgil |
| türkmençe | tuk-000 | çatak |
| türkmençe | tuk-000 | çetin |
| Türkçe | tur-000 | güç |
| Türkçe | tur-000 | işkenceli |
| Türkçe | tur-000 | kıskanılmaya değmez |
| Türkçe | tur-000 | yorucu |
| Türkçe | tur-000 | zahmetli |
| Türkçe | tur-000 | zor |
| Türkçe | tur-000 | çalışkan |
| Türkçe | tur-000 | çok sert |
| українська | ukr-000 | важки́й |
| українська | ukr-000 | важкодоступний |
| українська | ukr-000 | вимучений |
| українська | ukr-000 | виснажливий |
| українська | ukr-000 | незавидний |
| українська | ukr-000 | скрутний |
| українська | ukr-000 | стомливий |
| українська | ukr-000 | тру́дний |
| українська | ukr-000 | трудний |
| اردو | urd-000 | دشوار |
| اردو | urd-000 | مشکل |
| اردو | urd-000 | کٹھن |
| oʻzbek | uzn-000 | mushkul |
| oʻzbek | uzn-000 | qiyin |
| łéngua vèneta | vec-000 | difissile |
| tiếng Việt | vie-000 | khó |
| tiếng Việt | vie-000 | khó khăn |
| lingaedje walon | wln-000 | deur |
| lingaedje walon | wln-000 | målåjhey |
| ייִדיש | ydd-000 | האַרב |
| ייִדיש | ydd-000 | שווער |
| 廣東話 | yue-000 | 困难 |
| 廣東話 | yue-000 | 困難 |
| 廣東話 | yue-000 | 难 |
| 廣東話 | yue-000 | 難 |
| 原中国 | zho-000 | 好糗 |
| Bahasa Malaysia | zsm-000 | berat |
| Bahasa Malaysia | zsm-000 | bergelora |
| Bahasa Malaysia | zsm-000 | betul-betul |
| Bahasa Malaysia | zsm-000 | bogel |
| Bahasa Malaysia | zsm-000 | genting |
| Bahasa Malaysia | zsm-000 | gondol |
| Bahasa Malaysia | zsm-000 | jegang |
| Bahasa Malaysia | zsm-000 | kejang |
| Bahasa Malaysia | zsm-000 | kenjar |
| Bahasa Malaysia | zsm-000 | keras |
| Bahasa Malaysia | zsm-000 | ketat |
| Bahasa Malaysia | zsm-000 | kosong |
| Bahasa Malaysia | zsm-000 | kronik |
| Bahasa Malaysia | zsm-000 | memarak |
| Bahasa Malaysia | zsm-000 | membadai |
| Bahasa Malaysia | zsm-000 | menakutkan |
| Bahasa Malaysia | zsm-000 | mengagumkan |
| Bahasa Malaysia | zsm-000 | menggentarkan |
| Bahasa Malaysia | zsm-000 | menggerunkan |
| Bahasa Malaysia | zsm-000 | payah |
| Bahasa Malaysia | zsm-000 | regang |
| Bahasa Malaysia | zsm-000 | rumit |
| Bahasa Malaysia | zsm-000 | rumpil |
| Bahasa Malaysia | zsm-000 | runyam |
| Bahasa Malaysia | zsm-000 | sarit |
| Bahasa Malaysia | zsm-000 | senting |
| Bahasa Malaysia | zsm-000 | serius |
| Bahasa Malaysia | zsm-000 | sukar |
| Bahasa Malaysia | zsm-000 | sulit |
| Bahasa Malaysia | zsm-000 | susah |
| Bahasa Malaysia | zsm-000 | tegang |
| Bahasa Malaysia | zsm-000 | teguh |
| Bahasa Malaysia | zsm-000 | terik |
| Bahasa Malaysia | zsm-000 | teruk |