Over-exert refers to straining oneself too much, which can lead to fatigue, injury, and even burnout. Antonyms for over-exert can include under-exert, which implies not exerting oneself enough, and pacing oneself, which involves exerting oneself in moderation and balancing rest and activity. Other antonyms for over-exert can include conserving energy, resting, relaxing, and taking it easy. These antonyms for over-exert emphasize the importance of listening to one's body and taking care of physical and mental well-being. By avoiding over-exertion and finding a healthy balance, individuals can maintain their health and avoid burnout.