The antonym for the phrase "more wound-up" can be "relaxed" or "calm." When someone is relaxed, they are not tense or anxious, and their mind and body are at ease. In contrast, when a person is "more wound-up," they are typically stressed, nervous, or agitated, with their mind and body in a state of tension. If you are feeling "more wound-up" than usual, try to take a break, breathe deeply, and do something calming or enjoyable to help you relax. Taking breaks and finding ways to unwind are essential for maintaining good mental and physical health.