English dictionary, thesaurus, translations & etymology

certain

13 synonyms and 4 antonyms for certain, ranked by how commonly they're used.

Adj — Completely confident that something is true.

Synonyms for certain

assured clear confident doubtless definite positive sicker sure unambiguous unequivocal unwavering univocal wis

uncertain impossible incidental particular specific

Synonyms and antonyms from Wiktionary, CC BY-SA.