1. showing too much enthusiasm or eagerness; excessively zealous

Examples

• The overzealous security guard searched every bag twice.
• Her overzealous attempts to help actually made things worse.
• The coach was criticized for being overzealous in his training methods.
• Overzealous fans rushed onto the field after the victory.
• The teacher’s overzealous grading policy frustrated many students.
• He became overzealous about his new diet and refused all social invitations.