n. 25B6; noun FOOL, ass, halfwit, blockhead, dunce, dolt, ignoramus, simpleton; informal dope, ninny, nincompoop, chump, dimwit, dumbo, dummy, loon, dork, jackass, bonehead, fathead, numbskull, dunderhead, thickhead, woodenhead, airhead, pinhead, lamebrain, cretin, moron, imbecile, pea-brain, birdbrain, jerk, nerd, donkey; Brit. informal nit, nitwit, twit, clot, plonker, berk, prat, pillock, wally, divvy, twerp, charlie; Scottish informal nyaff, balloon; N. Amer. informal schmuck, bozo, turkey, chowderhead, dingbat; Austral./NZ informal drongo, dill, alec, galah.
genius.