THESAURUS
nitwit
Boeotian, block, clod, cluck, dimwit, dolt, donkey, dope, dullard, dumb cluck, dumbbell, dummy, dunce, featherweight, gowk, jobbernowl, lackwit, lamebrain, lightweight, looby, loon, niais, nincompoop, ninny, ninnyhammer, noddy, pinhead, put, simp, stupid, thickwit, witling