thickheaded

Has not he thickheaded ignorant boors; lazy, enslaved farmers, weedy lands?

For a' that, I've had thickheaded friends who've been grateful to me noo and then.

The dear taxpayers might object, and those thickheaded, clogged rockets on the Board can't see your data on the Stranger.

Nobody but such a thickheaded ass as I am would have gone on all this time without seeing how the game stood.

The blow would have crushed the skull of any white man, but it seemed hardly to stun the thickheaded savage.