1. stubborn or obstinate people
Usage: informal
2. a type of fish with a hard bony head, especially certain species of catfish
Usage: regional; fishing

Examples

• The committee was full of hardheads who refused to consider any new proposals.
• Those hardheads won't listen to reason no matter what evidence you present.
• The fishermen caught several hardheads near the river bottom.
• Hardheads are common in southern waters and make good eating.
• Don't be such hardheads about this decision – there might be a better way.
• The old-timers called those bottom-dwelling fish hardheads because of their tough skulls.