1. a person who lived in caves during prehistoric times
2. a man who behaves in a rough, primitive, or uncivilized manner
Usage: informal

Examples

• The museum displayed tools used by cavemen thousands of years ago.
• Scientists study caveman paintings to learn about prehistoric life.
• Archaeological evidence shows how cavemen hunted for food.
• He acted like a caveman, grunting instead of speaking politely.
• Don’t be such a caveman – use your manners at dinner.
• The comedy portrayed him as a bumbling caveman character.