Synonyms: tranquility, tranquillity, serenity, quiet, placidity, repose
Definition: a disposition free from stress or emotion
Similar words: equanimity, composure, calm, calmness
Definition: steadiness of mind under stress
Usage: he accepted their problems with composure and she with equanimity
Synonyms: heartsease, peace, peace of mind, peacefulness, ataraxis, serenity, repose
Definition: the absence of mental stress or anxiety
Similar words: quietness, quietude, tranquility, tranquillity
Definition: a state of peace and quiet