1N-COUNT 穴居人 A troglodyte is someone who lives in a cave. 穴居人 [formal]
2N-COUNT 井底之蛙;见识短浅的人 If you refer to someone as a troglodyte, you mean that they are unsophisticated and do not know very much about anything. 井底之蛙;见识短浅的人 [disapproval]
He dismissed advocates of a completely free market as economic troglodytes with no concern for the social consequences.