troglodyte

A member of a fabulous or prehistoric race of people that lived in caves, dens, or holes.

A person considered to be reclusive, reactionary, out of date, or brutish.

A nonhuman ape. Not in scientific use.

An animal that lives underground, as an ant or a worm. Not in scientific use.

Inhabiting caverns; cavedwelling; cavernicolous; spelæan; troglodytic: specifically noting human beings, apes, and birds.

A cave-dweller; a caveman; one who lives in a naturally formed cavity in the rocks, or, by extension, one who has his abode in a dwelling-place of that kind, whether constructed by enlarging a natural cave or by making an entirely new excavation.

Hence, one living in seclusion; one unacquainted with the affairs of the world.

In mammalogy, an anthropoid ape of the genus Troglodytes, as the chimpanzee or the gorilla, especially the former, which was earlier known to naturalists and was called Simia troglodytes.