| italiano | ita-000 |
| arduo | |
| Afrikaans | afr-000 | moeilik |
| Englisce sprǣc | ang-000 | earfoþe |
| العربية | arb-000 | شَاق |
| العربية | arb-000 | صعب |
| العربية | arb-000 | صعْب |
| العربية | arb-000 | متشدد |
| luenga aragonesa | arg-000 | difízil |
| luenga aragonesa | arg-000 | fatigoso |
| Romániço | art-013 | ardua |
| asturianu | ast-000 | cansín |
| asturianu | ast-000 | fatigosu |
| asturianu | ast-000 | trabayosu |
| boarisch | bar-000 | hoat |
| boarisch | bar-000 | håt |
| বাংলা | ben-000 | shramasadhya |
| български | bul-000 | мъчен |
| български | bul-000 | недостъпен |
| български | bul-000 | стръмен |
| български | bul-000 | тежък |
| български | bul-000 | труден |
| български | bul-000 | усилен |
| català | cat-000 | ardu |
| català | cat-000 | difícil |
| català | cat-000 | dur |
| català | cat-000 | fatigós |
| čeština | ces-000 | lopotný |
| čeština | ces-000 | namáhavý |
| čeština | ces-000 | nesnadný |
| čeština | ces-000 | obtížný |
| čeština | ces-000 | pracný |
| čeština | ces-000 | příkrý |
| čeština | ces-000 | strmý |
| čeština | ces-000 | úmorný |
| 普通话 | cmn-000 | 困难 |
| 普通话 | cmn-000 | 困难的 |
| 普通话 | cmn-000 | 艰巨 |
| 普通话 | cmn-000 | 艰苦 |
| 普通话 | cmn-000 | 艰苦的 |
| 普通话 | cmn-000 | 艰难的 |
| 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 | 难以 |
| 國語 | cmn-001 | 不便 |
| 國語 | cmn-001 | 艱巨 |
| 國語 | cmn-001 | 艱苦 |
| 國語 | cmn-001 | 辛 |
| 國語 | cmn-001 | 辛勞 |
| 國語 | cmn-001 | 辛苦 |
| Hànyǔ | cmn-003 | jiān ju |
| Hànyǔ | cmn-003 | jiān ku |
| Hànyǔ | cmn-003 | xin |
| Hànyǔ | cmn-003 | xīn lao |
| dansk | dan-000 | svær |
| dansk | dan-000 | vanskelig |
| dansk | dan-000 | vanskeligt |
| Deutsch | deu-000 | anstrengend |
| Deutsch | deu-000 | aufreibend |
| Deutsch | deu-000 | beschwerlich |
| Deutsch | deu-000 | diffizil |
| Deutsch | deu-000 | erschöpfend |
| Deutsch | deu-000 | hart |
| Deutsch | deu-000 | knifflig |
| Deutsch | deu-000 | kompliziert |
| Deutsch | deu-000 | mühsam |
| Deutsch | deu-000 | schwer |
| Deutsch | deu-000 | schwierig |
| Deutsch | deu-000 | steil |
| Deutsch | deu-000 | vertrackt |
| Deutsch | deu-000 | verzwickt |
| ελληνικά | ell-000 | δύσκολος |
| ελληνικά | ell-000 | δύσκολος-η-ο |
| ελληνικά | ell-000 | επίπονος |
| ελληνικά | ell-000 | κοπιώδης |
| English | eng-000 | arduous |
| English | eng-000 | backbreaking |
| English | eng-000 | difficult |
| English | eng-000 | exhausting |
| English | eng-000 | gruelling |
| English | eng-000 | hard |
| English | eng-000 | laborious |
| English | eng-000 | labourious |
| English | eng-000 | laboursome |
| English | eng-000 | painstaking |
| English | eng-000 | punishing |
| English | eng-000 | steep |
| English | eng-000 | tireful |
| English | eng-000 | toilsome |
| English | eng-000 | tough |
| English | eng-000 | trying |
| English | eng-000 | wearisome |
| Esperanto | epo-000 | ellaciga |
| Esperanto | epo-000 | laborega |
| Esperanto | epo-000 | laboriga |
| Esperanto | epo-000 | laborpostula |
| Esperanto | epo-000 | malfacila |
| Esperanto | epo-000 | peniga |
| Esperanto | epo-000 | streĉiga |
| Esperanto | epo-000 | ŝvitiga |
| euskara | eus-000 | akigarri |
| euskara | eus-000 | nekagarri |
| euskara | eus-000 | nekez |
| euskara | eus-000 | zail |
| føroyskt | fao-000 | virkin |
| suomi | fin-000 | ankara |
| suomi | fin-000 | hankala |
| suomi | fin-000 | jyrkkä |
| suomi | fin-000 | kova |
| suomi | fin-000 | rasittava |
| suomi | fin-000 | raskas |
| suomi | fin-000 | työläs |
| suomi | fin-000 | uuvuttava |
| suomi | fin-000 | vaativa |
| suomi | fin-000 | vaikea |
| suomi | fin-000 | vaivalloinen |
| français | fra-000 | ardu |
| français | fra-000 | compliqué |
| français | fra-000 | difficile |
| français | fra-000 | dur |
| français | fra-000 | délicat |
| français | fra-000 | lourd |
| français | fra-000 | malaise |
| français | fra-000 | pénible |
| français | fra-000 | épineux |
| français | fra-000 | épuisant |
| Gàidhlig | gla-000 | duilich |
| galego | glg-000 | arduo |
| galego | glg-000 | difícil |
| galego | glg-000 | duro |
| Srpskohrvatski | hbs-001 | mukotrpan |
| עברית | heb-000 | קשה |
| עִברִית | heb-003 | קָשֶׁה |
| hiMxI | hin-004 | SramasAXya |
| hiMxI | hin-004 | xuRkara |
| hrvatski | hrv-000 | mukotrpan |
| hrvatski | hrv-000 | mukotrpna |
| hrvatski | hrv-000 | mukotrpno |
| hrvatski | hrv-000 | mučan |
| hrvatski | hrv-000 | naporan |
| hrvatski | hrv-000 | teško |
| hrvatski | hrv-000 | težak |
| magyar | hun-000 | döglesztõ |
| magyar | hun-000 | fáradságos |
| magyar | hun-000 | fárasztó |
| magyar | hun-000 | kimerítő |
| magyar | hun-000 | megerőltető |
| magyar | hun-000 | terhes |
| արևելահայերեն | hye-000 | աշխատատար |
| արևելահայերեն | hye-000 | դժվար |
| արևելահայերեն | hye-000 | ծանր աշխատանք պահանջող |
| արևելահայերեն | hye-000 | ծանր դժվար |
| արևելահայերեն | hye-000 | տքնաջան |
| արևելահայերեն | hye-000 | քրտնաջան |
| Ido | ido-000 | abrupta |
| Ido | ido-000 | ardua |
| Ido | ido-000 | des |
| Ido | ido-000 | des-facila |
| interlingua | ina-000 | ardue |
| interlingua | ina-000 | difficile |
| bahasa Indonesia | ind-000 | berat |
| bahasa Indonesia | ind-000 | berat/sulit |
| bahasa Indonesia | ind-000 | kerih |
| bahasa Indonesia | ind-000 | kompleks |
| bahasa Indonesia | ind-000 | muskil |
| bahasa Indonesia | ind-000 | payah |
| bahasa Indonesia | ind-000 | perlu banyak tenaga |
| bahasa Indonesia | ind-000 | rumit |
| bahasa Indonesia | ind-000 | rumpil |
| bahasa Indonesia | ind-000 | runyam |
| bahasa Indonesia | ind-000 | ruwet |
| bahasa Indonesia | ind-000 | sangat meletihkan |
| bahasa Indonesia | ind-000 | sarit |
| bahasa Indonesia | ind-000 | senting |
| bahasa Indonesia | ind-000 | sukar |
| bahasa Indonesia | ind-000 | sulit |
| bahasa Indonesia | ind-000 | susah |
| íslenska | isl-000 | erfitt |
| íslenska | isl-000 | erfið |
| íslenska | isl-000 | erfiður |
| íslenska | isl-000 | lýjandi |
| íslenska | isl-000 | strembinn |
| italiano | ita-000 | ardua |
| italiano | ita-000 | complicato |
| italiano | ita-000 | difficile |
| italiano | ita-000 | difficoltoso |
| italiano | ita-000 | duro |
| italiano | ita-000 | faticoso |
| italiano | ita-000 | impegnativo |
| italiano | ita-000 | laborioso |
| italiano | ita-000 | malagevole |
| italiano | ita-000 | massacrante |
| 日本語 | jpn-000 | きつい |
| 日本語 | jpn-000 | つらい |
| 日本語 | jpn-000 | むずい |
| 日本語 | jpn-000 | ムズい |
| 日本語 | jpn-000 | 困難 |
| 日本語 | jpn-000 | 困難な |
| 日本語 | jpn-000 | 根気強い |
| 日本語 | jpn-000 | 苦しい |
| 日本語 | jpn-000 | 難い |
| 日本語 | jpn-000 | 難し |
| 日本語 | jpn-000 | 難しい |
| 日本語 | jpn-000 | 難儀 |
| ქართული | kat-000 | ძნელი |
| 한국어 | kor-000 | 고난 |
| 한국어 | kor-000 | 곤란한 |
| 한국어 | kor-000 | 몹시 힘드는 |
| 한국어 | kor-000 | 어려운 |
| 한국어 | kor-000 | 험악한 |
| latine | lat-000 | arduus |
| latine | lat-000 | laboriosus |
| latine | lat-000 | labōriōsus |
| lietuvių | lit-000 | sudėtingas |
| lietuvių | lit-000 | sunkus |
| lingaz ladin | lld-000 | rie |
| lengua lumbarda | lmo-000 | düür |
| Lumbaart | lmo-006 | düür |
| latviešu | lvs-000 | grūts |
| मराठी | mar-000 | कठिण |
| reo Māori | mri-000 | papatoiake |
| 台灣話 | nan-000 | 艰苦 |
| 台灣話 | nan-000 | 艱苦 |
| napulitano | nap-000 | difficile |
| napulitano | nap-000 | scabrusu |
| Nederlands | nld-000 | arbeidzaam |
| Nederlands | nld-000 | bewerkelijk |
| Nederlands | nld-000 | moeilijk |
| Nederlands | nld-000 | moeilijk te beklimmen |
| Nederlands | nld-000 | moeizaam |
| Nederlands | nld-000 | steil |
| Nederlands | nld-000 | uitputtend |
| Nederlands | nld-000 | vermoeiend |
| Nederlands | nld-000 | zwaar |
| bokmål | nob-000 | besvær |
| bokmål | nob-000 | bratt |
| bokmål | nob-000 | full av vanskeligheter |
| bokmål | nob-000 | komplisert |
| bokmål | nob-000 | slitsom |
| bokmål | nob-000 | steil |
| bokmål | nob-000 | strevsom |
| bokmål | nob-000 | vanske |
| bokmål | nob-000 | vanskelig |
| bokmål | nob-000 | vanskelig bestige |
| occitan | oci-000 | laboriós |
| فارسی | pes-000 | doshvâr |
| فارسی | pes-000 | سخت |
| فارسی | pes-000 | صعب |
| valdugèis | pms-002 | difìcil |
| polski | pol-000 | mozolny |
| polski | pol-000 | niesłodki |
| polski | pol-000 | uciążliwy |
| polski | pol-000 | usilny |
| português | por-000 | arduo |
| português | por-000 | difícil |
| português | por-000 | foda |
| português | por-000 | intrincado |
| português | por-000 | penoso |
| português | por-000 | árduo |
| Wanuku rimay | qub-000 | sasa |
| Urin Buliwya | quh-000 | sasa |
| Chanka rimay | quy-000 | sasa |
| Qusqu qhichwa simi | quz-000 | sasa |
| Waylla Wanka | qvw-000 | sasa |
| Siwas | qxn-000 | aha |
| Siwas | qxn-000 | sasa |
| Shawsha Wanka | qxw-000 | sasa |
| română | ron-000 | anevoios |
| română | ron-000 | dificil |
| română | ron-000 | laborios |
| română | ron-000 | obositor |
| русский | rus-000 | дохлый |
| русский | rus-000 | круто́й |
| русский | rus-000 | напряж |
| русский | rus-000 | напряжённый |
| русский | rus-000 | неудачливый |
| русский | rus-000 | низкопробный |
| русский | rus-000 | плохой |
| русский | rus-000 | тру́дный |
| русский | rus-000 | труднодосту́пный |
| русский | rus-000 | труднодоступный |
| русский | rus-000 | трудный |
| русский | rus-000 | трудолюб |
| русский | rus-000 | тяжёлый |
| русский | rus-000 | утомит |
| русский | rus-000 | энергичный |
| slovenčina | slk-000 | húževnatý |
| slovenčina | slk-000 | kostrbatý |
| slovenčina | slk-000 | namáhavý |
| slovenčina | slk-000 | pracný |
| slovenčina | slk-000 | prácny |
| slovenščina | slv-000 | tegoben |
| slovenščina | slv-000 | težaven |
| slovenščina | slv-000 | težek |
| slovenščina | slv-000 | trd |
| español | spa-000 | arduo |
| español | spa-000 | desafiador |
| español | spa-000 | difícil |
| español | spa-000 | duro |
| español | spa-000 | laborioso |
| español | spa-000 | penoso |
| español | spa-000 | riguroso |
| español | spa-000 | trabajoso |
| svenska | swe-000 | ansträngande |
| svenska | swe-000 | arbetsam |
| svenska | swe-000 | avancerad |
| svenska | swe-000 | besvärlig |
| svenska | swe-000 | brant |
| svenska | swe-000 | jobbig |
| svenska | swe-000 | krävande |
| svenska | swe-000 | krånglig |
| svenska | swe-000 | mycket krävande |
| svenska | swe-000 | mödosam |
| svenska | swe-000 | påfrestande |
| svenska | swe-000 | svår |
| Kiswahili | swh-000 | -a shida |
| Kiswahili | swh-000 | -a taabu |
| Kiswahili | swh-000 | -gumu |
| Kiswahili | swh-000 | -zito |
| Kiswahili | swh-000 | mahututi |
| ภาษาไทย | tha-000 | ต้องใช้ความพยายามมาก |
| ภาษาไทย | tha-000 | ถึงพริกถึงขิง |
| ภาษาไทย | tha-000 | ทรหด |
| ภาษาไทย | tha-000 | ยาก |
| ภาษาไทย | tha-000 | อย่างแรง |
| ภาษาไทย | tha-000 | เหนื่อยมาก |
| ภาษาไทย | tha-000 | เหน็ดเหนื่อยมาก |
| ภาษาไทย | tha-000 | ใช้แรงงานมาก |
| Türkçe | tur-000 | ağır |
| Türkçe | tur-000 | gayretli |
| Türkçe | tur-000 | güç |
| Türkçe | tur-000 | işkenceli |
| Türkçe | tur-000 | sarp |
| Türkçe | tur-000 | yorucu |
| Türkçe | tur-000 | zahmetli |
| Türkçe | tur-000 | zor |
| Türkçe | tur-000 | çalışkan |
| Türkçe | tur-000 | çetin |
| українська | ukr-000 | важкодоступний |
| українська | ukr-000 | вимучений |
| українська | ukr-000 | виснажливий |
| українська | ukr-000 | енергійний |
| українська | ukr-000 | стомливий |
| українська | ukr-000 | трудний |
| łéngua vèneta | vec-000 | difìssile |
| tiếng Việt | vie-000 | gay go |
| tiếng Việt | vie-000 | khó khăn |
| Bahasa Malaysia | zsm-000 | berat |
| Bahasa Malaysia | zsm-000 | kerih |
| Bahasa Malaysia | zsm-000 | kompleks |
| Bahasa Malaysia | zsm-000 | payah |
| Bahasa Malaysia | zsm-000 | rumit |
| Bahasa Malaysia | zsm-000 | rumpil |
| Bahasa Malaysia | zsm-000 | runyam |
| Bahasa Malaysia | zsm-000 | ruwet |
| Bahasa Malaysia | zsm-000 | sarit |
| Bahasa Malaysia | zsm-000 | senting |
| Bahasa Malaysia | zsm-000 | sukar |
| Bahasa Malaysia | zsm-000 | sulit |
| Bahasa Malaysia | zsm-000 | susah |