Cooling off is a phrase that is often used to describe someone who needs to calm down after being in a heated or emotional situation. However, there are many other words that can be used in place of the phrase "cooling off". Some possible synonyms include decompressing, relaxing, chilling out, taking a breather, calming down, and unwinding. Each of these words conveys the sense of taking a step back, resting and letting go of stress or tension. The use of these words can help to convey a message of peacefulness and tranquility, while also conveying a sense of emotional stability. Overall, synonyms for "cooling off" can help to provide a range of options for expressing the need to relax and unwind.