- sesquipedalian - given to the overuse of long words; "sesquipedalian orators"; "this sesquipedalian way of saying one has no money"
Antonym: unpretentious (indirect, via pretentious)
- polysyllabic, sesquipedalian - (of words) long and ponderous; having many syllables; "sesquipedalian technical terms"
Antonym: short (indirect, via long)
- sesquipedalian, sesquipedalia - a very long word (a foot and a half long)
--1 is a kind of polysyllable, polysyllabic word