Blockhead \Block"head`\, n. [Block + head.]

A stupid fellow; a dolt; a person deficient in understanding. [1913 Webster]

The bookful blockhead, ignorantly read, With loads of learned lumber in his head. --Pope. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

67 Moby Thesaurus words for "blockhead": addlebrain, addlehead, addlepate, beefhead, blubberhead, blunderer, blunderhead, bonehead, boor, botcher, bufflehead, bumbler, bungler, cabbagehead, chowderhead, chucklehead, clod, clodhead, clodhopper, clodknocker, clodpate, clodpoll, clot, clown, dimwit, dolt, dolthead, dullhead, dumbbell, dumbhead, dummy, dunderhead, dunderpate, fathead, fumbler, gawk, gowk, jolterhead, jughead, klutz, knucklehead, looby, lout, lubber, lunkhead, meathead, muddlehead, mushhead, muttonhead, nitwit, noodlehead, numskull, oaf, ox, peabrain, pinbrain, pinhead, puddinghead, pumpkin head, puzzlehead, slouch, slubberer, stupidhead, thickhead, thickskull, tottyhead, yokel

Source: Moby Thesaurus II by Grady Ward, 1.0
 

blockhead

Source: WordNet (r) 2.0
 

Blockhead \Block"head`\, n. [Block + head.]

A stupid fellow; a dolt; a person deficient in understanding.

The bookful blockhead, ignorantly read, With loads of learned lumber in his head. --Pope.

Source: Webster's Revised Unabridged Dictionary (1913)