1. showing too much enthusiasm; excessively eager or excited

Examples

• The overenthusiastic fan rushed onto the field during the game.
• Her overenthusiastic greeting embarrassed her teenage daughter.
• The teacher warned against being overenthusiastic when handling the delicate equipment.
• His overenthusiastic response to the proposal made everyone uncomfortable.
• The overenthusiastic puppy knocked over the coffee table.
• She gave an overenthusiastic performance that seemed forced.