Sesquipedalian Sesquipedalian antonyms If you know antonyms for Sesquipedalian, then you can share it. Suggest antonym for Sesquipedalian Sesquipedalian synonyms polysyllabic sesquipedal sesquipedalia long lengthy pretentious polysyllable long-winded turgid indigestible fustian Full list of synonyms (18)