1. a state of being excessively or intensely excited; excitement that is too great or uncontrolled
Usage: uncountable noun; often used to describe emotional states in children or in response to anticipated events

Examples

• The children's overexcitement before the field trip made it hard for the teacher to maintain order.
• His overexcitement about the new job kept him awake all night.
• The puppy's overexcitement at the dog park resulted in exhaustion by evening.
• She tried to manage her overexcitement before the big presentation.
• Overexcitement can sometimes lead to poor decision-making.
• The crowd's overexcitement during the concert was palpable.
• Parents often need to help children calm down from overexcitement after birthday parties.