simmer down Synonyms

calm cool off cool it chill out settle down calm down tranquilize keep one's cool keep one's head keep one's shirt on play it cool pull oneself together control oneself stay loose compose oneself regain one's composure recover one's composure recover one's self-control regain one's self-control quieten down get a grip unwind loosen up decompress relax cool down lighten up rein take it easy cool compose chill wind down come back down to earth