| français | fra-000 |
| inefficace | |
| Afrikaans | afr-000 | ineffektief |
| toskërishte | als-000 | i padobishëm |
| toskërishte | als-000 | pa efekt |
| العربية | arb-000 | خائب |
| luenga aragonesa | arg-000 | vano |
| Universal Networking Language | art-253 | feckless(icl>adj) |
| Universal Networking Language | art-253 | inefficacious(icl>adj,ant>efficacious) |
| asturianu | ast-000 | ineficaz |
| asturianu | ast-000 | ineficiente |
| asturianu | ast-000 | ineptu |
| asturianu | ast-000 | infructuosu |
| বাংলা | ben-000 | অসফল |
| brezhoneg | bre-000 | diefedus |
| български | bul-000 | некадърен |
| български | bul-000 | неспособен |
| català | cat-000 | incapaç |
| català | cat-000 | ineficaç |
| català | cat-000 | ineficient |
| čeština | ces-000 | bezvýsledný |
| čeština | ces-000 | neefektivní |
| čeština | ces-000 | neúčinný |
| ѩзыкъ словѣньскъ | chu-000 | сѹи |
| 普通话 | cmn-000 | 一场空 |
| 普通话 | cmn-000 | 不起作用的 |
| 普通话 | cmn-000 | 低效 |
| 普通话 | cmn-000 | 徒劳 |
| 普通话 | cmn-000 | 无价值的 |
| 普通话 | cmn-000 | 无效 |
| 普通话 | cmn-000 | 无效的 |
| 普通话 | cmn-000 | 无用的 |
| 國語 | cmn-001 | 一場空 |
| 國語 | cmn-001 | 低效 |
| 國語 | cmn-001 | 徒勞 |
| 國語 | cmn-001 | 無效 |
| Hànyǔ | cmn-003 | dī xiao |
| Hànyǔ | cmn-003 | tú lao |
| Hànyǔ | cmn-003 | wú xiao |
| Hànyǔ | cmn-003 | yī chǎng kong |
| Cymraeg | cym-000 | aneffeithlon |
| Deutsch | deu-000 | erfolglos |
| Deutsch | deu-000 | ineffektiv |
| Deutsch | deu-000 | ineffizient |
| Deutsch | deu-000 | uneffektiv |
| Deutsch | deu-000 | unfähig |
| Deutsch | deu-000 | unkompetent |
| Deutsch | deu-000 | unrationell |
| Deutsch | deu-000 | unwirksam |
| Deutsch | deu-000 | vergeblich |
| eesti | ekk-000 | oimetu |
| ελληνικά | ell-000 | άκαρπος |
| ελληνικά | ell-000 | αναποτελεσματικός |
| English | eng-000 | backwards |
| English | eng-000 | counterproductive |
| English | eng-000 | feckless |
| English | eng-000 | futile |
| English | eng-000 | impotent |
| English | eng-000 | ineffective |
| English | eng-000 | ineffectual |
| English | eng-000 | inefficacious |
| English | eng-000 | inefficient |
| English | eng-000 | inexpedient |
| English | eng-000 | nugatory |
| English | eng-000 | powerless |
| English | eng-000 | punchless |
| English | eng-000 | tardy |
| English | eng-000 | unavailing |
| English | eng-000 | unfertile |
| English | eng-000 | unfortunate |
| English | eng-000 | unlucky |
| English | eng-000 | useless |
| Esperanto | epo-000 | impotenta |
| Esperanto | epo-000 | nekapabla |
| Esperanto | epo-000 | senefika |
| Esperanto | epo-000 | senruzulta |
| Esperanto | epo-000 | sensukcesa |
| Esperanto | epo-000 | senutila |
| Esperanto | epo-000 | vana |
| euskara | eus-000 | ez_eraginkor |
| euskara | eus-000 | ezgai |
| euskara | eus-000 | gauzaez |
| suomi | fin-000 | hyödytön |
| suomi | fin-000 | pystymätön |
| suomi | fin-000 | tehoton |
| suomi | fin-000 | tulokseton |
| français | fra-000 | abortif |
| français | fra-000 | impuissant |
| français | fra-000 | incapable |
| français | fra-000 | ineffectif |
| français | fra-000 | inopérant |
| français | fra-000 | insignifiant |
| français | fra-000 | inutile |
| français | fra-000 | maladroit |
| français | fra-000 | malchanceux |
| français | fra-000 | non valable |
| français | fra-000 | vain |
| Gaeilge | gle-000 | mí-éifeachtach |
| galego | glg-000 | ineficaz |
| galego | glg-000 | van |
| ἑλληνικὴ γλῶττα | grc-000 | ψυχρός |
| Srpskohrvatski | hbs-001 | neefikasan |
| Srpskohrvatski | hbs-001 | неефикасан |
| hiMxI | hin-004 | apraBAvI |
| hiMxI | hin-004 | niRPala |
| hrvatski | hrv-000 | uzaludan |
| magyar | hun-000 | hatástalan |
| արևելահայերեն | hye-000 | ունայն |
| interlingua | ina-000 | inefficace |
| interlingua | ina-000 | inefficiente |
| bahasa Indonesia | ind-000 | tak berguna |
| bahasa Indonesia | ind-000 | tidak efektip |
| bahasa Indonesia | ind-000 | tidak memberi hasil |
| íslenska | isl-000 | vanhæfur |
| íslenska | isl-000 | óduglegur |
| italiano | ita-000 | fallito |
| italiano | ita-000 | fasullo |
| italiano | ita-000 | incapace |
| italiano | ita-000 | inconcludente |
| italiano | ita-000 | inefficace |
| italiano | ita-000 | inefficiente |
| italiano | ita-000 | vano |
| 日本語 | jpn-000 | せんない |
| 日本語 | jpn-000 | むなしい |
| Taqbaylit | kab-000 | abennan |
| ქართული | kat-000 | ფუჭი |
| 한국어 | kor-000 | 게으론 |
| 한국어 | kor-000 | 무능한 |
| 한국어 | kor-000 | 무력한 |
| 한국어 | kor-000 | 쓸데없는 |
| 한국어 | kor-000 | 효과 없는 |
| 한국어 | kor-000 | 효과적인 아닌 |
| lietuvių | lit-000 | bergždžias |
| latviešu | lvs-000 | neefektīvs |
| Mauka | mxx-000 | kùnndàn |
| Mauka | mxx-000 | ɓóómágbó |
| Nederlands | nld-000 | ineffectief |
| Nederlands | nld-000 | ondoeltreffend |
| Nederlands | nld-000 | ongeldig |
| bokmål | nob-000 | fåfengt |
| bokmål | nob-000 | ineffektiv |
| bokmål | nob-000 | intetsigende |
| bokmål | nob-000 | udugelig |
| occitan | oci-000 | impotent |
| occitan | oci-000 | ineficaç |
| occitan | oci-000 | inutil |
| provençau, nòrma mistralenca | oci-002 | ineficace |
| provençau, nòrma mistralenca | oci-002 | qu’a ges d’eficaci |
| langue picarde | pcd-000 | inefficâce |
| langue picarde | pcd-000 | sans èffeût |
| polski | pol-000 | bezskuteczny |
| polski | pol-000 | nieskuteczny |
| português | por-000 | incapaz |
| português | por-000 | ineficaz |
| português | por-000 | inútil |
| português | por-000 | vão |
| română | ron-000 | ineficace |
| română | ron-000 | ineficient |
| română | ron-000 | inept |
| română | ron-000 | inutil |
| română | ron-000 | van |
| română | ron-000 | zadarnic |
| русский | rus-000 | безрезультатный |
| русский | rus-000 | бесплодный |
| русский | rus-000 | бесполезный |
| русский | rus-000 | беспомощный |
| русский | rus-000 | напрасный |
| русский | rus-000 | недейственный |
| русский | rus-000 | недействительный |
| русский | rus-000 | неэффективен |
| русский | rus-000 | неэффективный |
| slovenčina | slk-000 | bezvýsledná |
| slovenčina | slk-000 | bezvýsledné |
| slovenčina | slk-000 | bezvýsledný |
| slovenčina | slk-000 | neefektívny |
| slovenčina | slk-000 | neefektívná |
| slovenčina | slk-000 | neefektívné |
| slovenčina | slk-000 | nepôsobivá |
| slovenčina | slk-000 | nepôsobivé |
| slovenčina | slk-000 | nepôsobivý |
| slovenčina | slk-000 | neschopný |
| slovenčina | slk-000 | neúčinná |
| slovenčina | slk-000 | neúčinné |
| slovenčina | slk-000 | neúčinný |
| slovenčina | slk-000 | zbytočný |
| español | spa-000 | ineficaz |
| español | spa-000 | inútil |
| Lengua de signos española | ssp-000 | z.aég-aëmaleu |
| svenska | swe-000 | fånfäng |
| svenska | swe-000 | ineffektiv |
| ภาษาไทย | tha-000 | หาความจริงไม่ได้ |
| ภาษาไทย | tha-000 | ไม่มี |
| ภาษาไทย | tha-000 | ไม่มีให้เอา |
| ภาษาไทย | tha-000 | ไร้ความสามารถ |
| ภาษาไทย | tha-000 | ไร้ประสิทธิภาพ |
| ภาษาไทย | tha-000 | ไร้ผล |
| Türkçe | tur-000 | aciz |
| Türkçe | tur-000 | başarısız |
| Türkçe | tur-000 | beceriksiz |
| Türkçe | tur-000 | boş |
| Türkçe | tur-000 | boşuna |
| Türkçe | tur-000 | etkisiz |
| Türkçe | tur-000 | faydasız |
| Türkçe | tur-000 | tesirsiz |
| Türkçe | tur-000 | verimsiz |
| українська | ukr-000 | безрезультатний |
| українська | ukr-000 | неефективний |
| українська | ukr-000 | нездатний |
| tiếng Việt | vie-000 | không công hiệu |
| tiếng Việt | vie-000 | không hiệu nghiệm |
| tiếng Việt | vie-000 | vô hiệu |
| yémba | ybb-000 | lepekne |
| 原中国 | zho-000 | 无结果 |