| English | eng-000 |
| effortful | |
| বাংলা | ben-000 | সচেষ্ট |
| čeština | ces-000 | namáhaný |
| eesti | ekk-000 | pingutust nõudev |
| English | eng-000 | arduous |
| English | eng-000 | challenging |
| English | eng-000 | demanding |
| English | eng-000 | exacting |
| English | eng-000 | exigent |
| English | eng-000 | fastidious |
| English | eng-000 | taxing |
| suomi | fin-000 | vaativa |
| galego | glg-000 | con esforzo |
| magyar | hun-000 | erőfeszítést igénylő |
| magyar | hun-000 | nehéz |
| русский | rus-000 | затрудненный |
| русский | rus-000 | требующий усилий |