THESAURUS
numskull
addlebrain, addlehead, addlepate, beefhead, blockhead, blubberhead, blunderhead, bonehead, bufflehead, cabbagehead, chowderhead, chucklehead, clodhead, clodpate, clodpoll, dolthead, dullhead, dumbhead, dunderhead, dunderpate, fathead, jolterhead, jughead, knucklehead, lunkhead, meathead, muddlehead, mushhead, muttonhead, noodlehead, peabrain, pinbrain, pinhead, puddinghead, pumpkin head, puzzlehead, stupidhead, thickhead, thickskull, tottyhead
ROGET THESAURUS
numskull
Ignoramus
N
ignoramus, dunce, wooden spoon, no scholar, (imbecility) 499 (folly) 501 moron, imbecile, idiot, fool, jerk, nincompoop, asshole, dilettante, sciolist, smatterer, dabbler, half scholar, charlatan, wiseacre, greenhorn, amateur, novice, tyro,
numskull, lubber, fool, pedant, bookless, shallow, ignorant, a wit with dunces and a dunce with wits.