1. showing too much excitement, enthusiasm, or energy in a way that may be excessive or inappropriate

Examples

• The overexuberant puppy knocked over several plants while playing in the garden.
• His overexuberant celebration after scoring the goal earned him a yellow card.
• The teacher had to calm down the overexuberant students before the field trip.
• Her overexuberant greeting embarrassed her teenage daughter in front of friends.
• The overexuberant fans rushed onto the field after their team won the championship.
• The critic described the actor’s performance as overexuberant and lacking subtlety.