1. the state or quality of being mentally ill or unstable
2. extremely foolish or irrational behavior or ideas
Usage: informal
3. wild excitement or enthusiasm
Usage: informal

Examples

• The craziness of his plan became obvious when it failed completely.
• There’s a certain craziness to driving in heavy traffic during rush hour.
• The craziness of the crowd at the concert was infectious.
• She couldn’t handle the craziness of her new job anymore.
• The sheer craziness of the situation made everyone laugh.
• His craziness worried his family and friends.