Synonyms for fickle Found 4 synonyms across 2 meanings for “fickle”. marked by erratic changeableness in affections or attachments (adj) volatile liable to sudden unpredictable change (adj) erraticmercurialquicksilver(a) Explore Related Words Rhymes with fickleSynonyms for volatileSynonyms for erraticSynonyms for mercurialSynonyms for quicksilver(a) Synonym Finder | Rhyme Finder | Poetry Editor