Synonyms for opine Found 9 synonyms across 2 meanings for “opine”. express one's opinion openly and without fear or hesitation (verb) animadvert expect, believe, or suppose (verb) thinksupposeimaginereckonguess Explore Related Words Rhymes with opineSynonyms for animadvertSynonyms for thinkSynonyms for supposeSynonyms for imagineSynonyms for reckon Synonym Finder | Rhyme Finder | Poetry Editor