caveman

An early human or closely related species, popularly held to reside in caves.

The political cartoon showed the politician as a caveman, clubbing the budget depicted as a mammoth.

CAVEMAN DIET The creators of this nutrition plan believe that cavemen and cavewomen were lean and healthy because of the all-natural foods they ate.

A person with backward, primitive behavior, opinions, or interests.

You think your Caveman is always chasing you for sex. Well, he is.

A person with backward, primitive behavior, opinions, or interests.

The football squad was made up of cavemen who were responsible for trashing many a locker room.

"Bless you, he would think nothing of throwing you downstairs if you have a disagreement. He is a primitive cave-man in a lounge suit. I can see him with a club in one hand and a jagged bit of flint in the other."

A person with backward, primitive behavior, opinions, or interests.

Old Sven is a bit of a caveman; he figures giving women the right to vote was a bad idea.

Pat is a real caveman when it comes to tech, and refuses to get a smartphone.