Synonyms for fizzle Found 9 synonyms across 3 meanings for “fizzle”. a fricative sound (especially as an expression of disapproval) (noun) hisshissinghushingsibilation a complete failure (noun) flopbust end weakly (verb) Explore Related Words Rhymes with fizzleSynonyms for hissSynonyms for hissingSynonyms for hushingSynonyms for sibilationSynonyms for flop Synonym Finder | Rhyme Finder | Poetry Editor