The concept of upsetting oneself can have various antonyms depending on the context and the emotion involved. If the opposite of upsetting oneself is to calm down, some antonyms could be peaceful, tranquil, composed, serene, or poised. If we consider the opposite of being upset as being happy or satisfied, antonyms can include content, pleased, cheerful, joyful, or ecstatic. Alternatively, one can consider the antonym of upsetting oneself to mean accepting or letting go of a situation. In that case, antonyms could be forgiving, resilient, tolerant, patient, and understanding. Understanding the appropriate antonym for upsetting oneself is crucial for individuals looking to manage their emotional responses effectively.