| Nederlands | nld-000 |
| stemmig | |
| العربية | arb-000 | جاد |
| العربية | arb-000 | جدي |
| беларуская | bel-000 | сурʼёзны |
| català | cat-000 | seriós |
| čeština | ces-000 | klidný |
| čeština | ces-000 | mírný |
| čeština | ces-000 | rozumný |
| čeština | ces-000 | rozvážný |
| čeština | ces-000 | seriózní |
| čeština | ces-000 | stálý |
| čeština | ces-000 | střídmý |
| čeština | ces-000 | ukázněný |
| čeština | ces-000 | umírněný |
| čeština | ces-000 | usazený |
| čeština | ces-000 | usedlý |
| čeština | ces-000 | zdrženlivý |
| čeština | ces-000 | šetrný |
| dansk | dan-000 | alvorlig |
| dansk | dan-000 | seriøs |
| Deutsch | deu-000 | abstinent |
| Deutsch | deu-000 | ernst |
| Deutsch | deu-000 | ernsthaft |
| Deutsch | deu-000 | gesetzt |
| Deutsch | deu-000 | mäßig |
| Deutsch | deu-000 | nüchtern |
| Deutsch | deu-000 | seriös |
| English | eng-000 | abstemious |
| English | eng-000 | demure |
| English | eng-000 | demurely |
| English | eng-000 | earnest |
| English | eng-000 | grave |
| English | eng-000 | meaningful |
| English | eng-000 | quiet |
| English | eng-000 | reliable |
| English | eng-000 | serious |
| English | eng-000 | sober |
| English | eng-000 | solemn |
| English | eng-000 | staid |
| English | eng-000 | temperate |
| Esperanto | epo-000 | serioza |
| Esperanto | epo-000 | sobra |
| euskara | eus-000 | serio |
| føroyskt | fao-000 | álvarsamur |
| suomi | fin-000 | vakava |
| français | fra-000 | sobre |
| français | fra-000 | sérieux |
| Frysk | fry-000 | earnstich |
| galego | glg-000 | formal |
| hiMxI | hin-004 | wawpara |
| íslenska | isl-000 | alvarlegur |
| italiano | ita-000 | serio |
| Limburgs | lim-000 | sjtömmig |
| Nederlands | nld-000 | bezadigd |
| Nederlands | nld-000 | bona fide |
| Nederlands | nld-000 | ernstig |
| Nederlands | nld-000 | matig |
| Nederlands | nld-000 | nuchter |
| Nederlands | nld-000 | serieus |
| Nederlands | nld-000 | sober |
| bokmål | nob-000 | alvorlig |
| Papiamentu | pap-000 | serio |
| polski | pol-000 | poważny |
| português | por-000 | comedido |
| português | por-000 | grave |
| português | por-000 | parco |
| português | por-000 | sisudo |
| português | por-000 | sério |
| português | por-000 | sóbrio |
| română | ron-000 | serios |
| español | spa-000 | formal |
| español | spa-000 | serio |
| svenska | swe-000 | allvarlig |
| Türkçe | tur-000 | ağırbaşlı |