The antonyms for the term "warms up" include cooling down, chilling, freezing, refrigerating, and icing. These words denote the opposite of warming up, which means to make something warmer or raise its temperature, especially during physical activity or exercise. Cooling down, on the other hand, means to lower the temperature, slow down, or relax after physical exertion. Chill, freeze, and refrigerate refer to reducing the temperature of food or drinks to keep them fresh, while icing involves applying a cold pack or ice to soothe an injury. In short, the antonyms of "warms up" describe actions that decrease or maintain low temperature.