| Part of speech | common noun |
|---|---|
| Pronunciation | /ˈɒptɪmɪz(ə)m/, /ˈɒptɪməz(ə)m/ |
| Hyphenation | op·ti·mism |
| Afrikaans | optimisme |
|---|---|
| Czech | optimismus |
| Dutch | optimisme |
| Esperanto | optimismo |
| Faeroese | bjartskygni |
| French | optimisme |
| German | Optimismus |
| Italian | ottimismo |
| Papiamento | optimismo |
| Portuguese | otimismo |
| Saterland Frisian | Optimismus |
| Spanish | optimismo |
| Swedish | optimism |
| Welsh | optimistiaeth |