The act of "cooling it" typically involves calming down, relaxing or taking a break from a situation. Antonyms for this phrase would then be words that imply the opposite. These may include words like exacerbating, aggravating, intensifying, or heating up. Instead of cooling it, individuals who exacerbate a situation only make it worse, while those who aggravate it add more stress and tension. Similarly, those who intensify a situation make it more volatile and unpredictable, and those who heat it up make it more emotional and explosive. Therefore, while cooling it can bring peace and tranquility, the antonyms for this phrase can cause chaos and turmoil.