Synonyms for sissy Found 10 synonyms across 2 meanings for “sissy”. a timid man or boy considered childish or unassertive (noun) pantywaistpansymilksopmilquetoast having unsuitable feminine qualities (adj) effeminateemasculateepicenecissysissifiedsissyish Explore Related Words Rhymes with sissySynonyms for pantywaistSynonyms for pansySynonyms for milksopSynonyms for milquetoastSynonyms for effeminate Synonym Finder | Rhyme Finder | Poetry Editor