| English | eng-000 |
| underived | |
| العربية | arb-000 | غير مشتقّ |
| Universal Networking Language | art-253 | underived |
| ελληνικά | ell-000 | βασικός |
| English | eng-000 | aboriginal |
| English | eng-000 | archaic |
| English | eng-000 | atavist |
| English | eng-000 | basic |
| English | eng-000 | common |
| English | eng-000 | crude |
| English | eng-000 | lowly |
| English | eng-000 | naive |
| English | eng-000 | plain |
| English | eng-000 | primitive |
| English | eng-000 | primordial |
| English | eng-000 | savage |
| English | eng-000 | simple |
| English | eng-000 | simple-minded |
| English | eng-000 | simplex |
| English | eng-000 | single |
| English | eng-000 | slow-witted |
| English | eng-000 | sober |
| English | eng-000 | unsophisticated |
| suomi | fin-000 | alkukantainen |
| suomi | fin-000 | yksinkertainen |
| galego | glg-000 | simple |
| हिन्दी | hin-000 | मूलभूत |
| हिन्दी | hin-000 | सहज |
| олык марий | mhr-000 | тӱп |
| slovenščina | slv-000 | osnoven |
| español | spa-000 | básico |
| español | spa-000 | no derivado |
| español | spa-000 | simple |