| English | eng-000 |
| mentally retarded | |
| العربية | arb-000 | متخلف |
| العربية | arb-000 | مُتخلِّف |
| Somba Siawari | bmu-000 | mötök |
| čeština | ces-000 | duševně zaostalý |
| dansk | dan-000 | retarderet |
| dansk | dan-000 | udviklingshæmmet |
| Deutsch | deu-000 | Geistesschwäche |
| Deutsch | deu-000 | Schwachsinn |
| Deutsch | deu-000 | geistig behindert |
| Deutsch | deu-000 | geistig beschränkt |
| Deutsch | deu-000 | geistig zurückgeblieben |
| Agta | dgc-000 | utú-utú |
| Yorno-So | dts-001 | gìbìlù=> |
| English | eng-000 | crazy |
| English | eng-000 | developmentally challenged |
| English | eng-000 | dumb |
| English | eng-000 | foolish |
| English | eng-000 | mental retardation |
| English | eng-000 | mentally defective |
| English | eng-000 | mentally deficient |
| English | eng-000 | mentally disabled |
| English | eng-000 | mentally handicapped |
| English | eng-000 | moronic |
| English | eng-000 | retarded |
| English | eng-000 | slow-witted |
| English | eng-000 | stupid |
| Boontling | eng-012 | tuddish |
| euskara | eus-000 | atzeratu |
| suomi | fin-000 | jälkeenjäänyt |
| suomi | fin-000 | kehitysvammainen |
| suomi | fin-000 | retardoitunut |
| suomi | fin-000 | älyllisesti jälkeenjäänyt |
| français | fra-000 | bête |
| français | fra-000 | débile |
| français | fra-000 | handicapé mental |
| français | fra-000 | stupide |
| magyar | hun-000 | szellemileg visszamaradt |
| magyar | hun-000 | értelmi fogyatékos |
| italiano | ita-000 | handicappato mentale |
| italiano | ita-000 | ritardato |
| italiano | ita-000 | ritardato mentale |
| 日本語 | jpn-000 | 精神薄弱 |
| 日本語 | jpn-000 | 精薄 |
| にほんご | jpn-002 | せいしんはくじゃく |
| にほんご | jpn-002 | せいはく |
| Lingua Franca Nova | lfn-000 | mental retardada |
| Mi’gmawi’simg | mic-000 | amatpaʼt |
| македонски | mkd-000 | ментално заостанат |
| Mimaʼnubù | msm-000 | oʼmaw |
| Mimaʼnubù | msm-000 | ʼpung-ow |
| bokmål | nob-000 | psykisk utviklingshemmet |
| русский | rus-000 | умственно отсталый |
| தமிழ் | tam-000 | மனநலம் குன்றிய |
| ภาษาไทย | tha-000 | ซึ่งปัญญาอ่อน |
| Talossan | tzl-000 | mental-lint |