| euskara | eus-000 |
| neketsu | |
| English | eng-000 | arduous |
| English | eng-000 | hard |
| English | eng-000 | laborious |
| English | eng-000 | marathon |
| English | eng-000 | onerous |
| English | eng-000 | punishing |
| English | eng-000 | tiring |
| euskara | eus-000 | astun |
| euskara | eus-000 | gaitz |
| euskara | eus-000 | luze |
| euskara | eus-000 | nekagarri |
| euskara | eus-000 | nekez |
| euskara | eus-000 | zail |
| français | fra-000 | fatigant |
| polski | pol-000 | żmudny |
| русский | rus-000 | кропотливый |