troglodyte
🇺🇸
/ˈtrɑːɡlədaɪt/
🇬🇧
/ˈtrɒɡlədaɪt/
A person who lives in a cave.
The ancient troglodytes carved out their homes in the mountains.
A person who is considered unsocial or reclusive, often spending a lot of time indoors.
She's such a troglodyte, always staying at home and never going out.