A reclusive, reactionary or out-of-date person, especially if brutish.
A person who chooses not to keep up-to-date with the latest software and hardware.
Anything that lives underground.
The Eurasian wren, Troglodytes troglodytes.
A member of a supposed prehistoric race that lived in caves or holes, a caveman.
A man who advocates unorthodox or outrageous opinions or who behaves in an eccentric manner.
A rowdy, dissolute, rash, or violent man.
A primitive man who dwells outside of civilized society; a savage person without culture.