Synonyms: essential, imperative, inevitable, vital, absolutely necessary
| Part of speech | adjective |
|---|
| Catalan | absolutament necessari; inevitable |
|---|---|
| Dutch | onvermijdelijk |
| Esperanto | nepra |
| French | absolu; ineluctable |
| Hungarian | szükségszerű |
| Spanish | indefectible; irremisible |