Caveman
noun
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.”
A brutish or savage person.
“The football squad was made up of cavemen who were responsible for trashing many a locker room.”
A man with old-fashioned or backward opinions, particularly with regard to women.
“Old Sven is a bit of a caveman; he figures giving women the right to vote was a bad idea.”
Synonyms: boor, knuckle dragger, lout, savage, thug, troglodyte, hominid, hominin