The antonyms for the word "more strung-out" would be relaxed, calm, composed, serene, tranquil, and unwound. When a person is strung-out, they are usually stressed, anxious, and overwhelmed with their current situation. Therefore, to counteract these negative feelings, they can try to find peaceful activities to calm the mind and body. Relaxing activities such as meditating, doing yoga, or going for a walk can be helpful in achieving a state of relaxation. It is essential to take breaks and prioritize self-care to avoid being more strung-out than necessary. Being mindful of our mental health and wellness is crucial in today's fast-paced world.