Antonyms for the phrase "breaking out in sweat" include: staying dry, feeling cool and refreshed, feeling comfortable, remaining calm and composed, and being relaxed. Instead of feeling hot and sweaty, you might experience a sense of relief, ease, or even exhilaration. Antonyms for "breaking out in sweat" also suggest a lack of stress and anxiety, as one might feel when taking a relaxing bath or enjoying a leisurely stroll in pleasant weather. Regardless of the antonym used, the absence of sweating can indicate a positive mindset and a feeling of control over one's physical and emotional state.