Synonyms and related words :
addlebrain, addlehead, addlepate, beefhead, blockhead, blubberhead, blunderhead, bonehead, bufflehead, cabbagehead, chowderhead, chucklehead, clodhead, clodpate, clodpoll, dabbler, dilettante, dolthead, dullhead, dumbhead, dunce, dunderhead, dunderpate, fathead, fool, greenhorn, greeny, ignoramus, illiterate, illiterati, jolterhead, jughead, know-nothing, knucklehead, lowbrow, lunkhead, meathead, middlebrow, muddlehead, mushhead, muttonhead, no scholar, noodlehead, numskull, peabrain, pinbrain, pinhead, pumpkin head, puzzlehead, stupidhead, tenderfoot, thickhead, thickskull, tottyhead, unintelligentsia