Synonyms for Dullard:

n.

clown, joker, maniac, dumb blond, numpty. ability, chump, numskull, thickhead, DUMBO, dummkopf. dolt (noun)
blockhead, dimwit, dumbbell, dunce, fool, imbecile, nitwit, simpleton, stupid person, meathead.
dullard (noun)
bore, dolt, poor fish, pudden-head, pudding head, stupid person.
fool (noun)
blockhead, bonehead, bungler, clod, cretin, dimwit, dolt, dumbbell, dummy, dunce, fool, half-wit, ignoramus, imbecile, loon, moron, nincompoop, nitwit, simpleton, crackpot, chuckle-head, knuckle-head, lame-brain, meathead.
ignoramus (noun)
birdbrain, buffoon, scatterbrain.
stupid person (noun)
dumbbell, dummy, dunce.

Other synonyms:

chump, thickhead, DUMBO, dummkopf. numskull. Other relevant words:
bore, chump, numskull, poor fish, pudden-head, pudding head, thickhead, DUMBO, dummkopf.

Usage examples for dullard

  1. When the police diplomatist left the soldier the latter stood looking after him, and as the sound of the man's steps died away he gave a sigh, muttering to himself, It may be a good thing after all to be such a dullard as I am. – The Chouans by Honore de Balzac
  2. And so he got the name of a dullard – The Life and Works of Friedrich Schiller by Calvin Thomas
  3. Still, a man who could not kiss properly after reading the Kama Sutra would be a dullard indeed. – The Life of Sir Richard Burton by Thomas Wright