- (of a person) dull-witted; stupid.
- (of an animal) having a thick head.
Origin of thickheaded
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for thickheaded
For a' that, I've had thickheaded friends who've been grateful to me noo and then.The Coast of Adventure
Nobody but such a thickheaded ass as I am would have gone on all this time without seeing how the game stood.Frank Fairlegh
Frank E. Smedley
The blow would have crushed the skull of any white man, but it seemed hardly to stun the thickheaded savage.Bert Wilson, Wireless Operator
J. W. Duffield
Has not he thickheaded ignorant boors; lazy, enslaved farmers, weedy lands?Past and Present