| Lingwa de Planeta | art-287 |
| fidele | |
| Sambahsa-mundialect | art-288 | loyal |
| Deutsch | deu-000 | ehrlich |
| Deutsch | deu-000 | loyal |
| Deutsch | deu-000 | treu |
| English | eng-000 | faithful |
| English | eng-000 | loyal |
| English | eng-000 | staunch |
| Esperanto | epo-000 | fidela |
| Esperanto | epo-000 | lojala |
| Nederlands | nld-000 | getrouw |
| Nederlands | nld-000 | trouw |
| Novial | nov-000 | loyal |
| русский | rus-000 | верный |
| русский | rus-000 | преданный |