1. in a state of mental confusion and excitement, often due to fever or illness
Usage: medical
2. extremely excited or happy
Usage: informal

Examples

• The patient was delirious with fever and couldn’t recognize his family.
• She became delirious after the surgery and spoke nonsense for hours.
• The fans were delirious with joy when their team won the championship.
• He was delirious with excitement about his acceptance to college.
• The high fever left her delirious and hallucinating.
• The crowd went delirious when the rock star appeared on stage.