nincompoop Synonyms

ninny poop turkey thickhead simpleton oaf numskull noodle nit twerp hammerhead morone mooncalf moke lummox lout loon loggerhead twit birdbrain airhead lamebrain numbskull halfwit dipstick charlie schmuck dimwit nitwit goon goofball pinhead goof bonehead knucklehead boob dope nerd lam know-nothing dummy dullard duffer donkey dolt dodo dizzard deadhead dag cretin