serenity

1 a state of freedom from storm or disturbance the serenity in the aftermath of the tornado was remarkable Synonyms calmness, hush, peace, peacefulness, placidity, quiet, quietness, quietude, repose, restfulness, sereneness, calm, still, stillness, tranquillity (or tranquility)Related Words lull, pause, respite; silence; mildness, soothingness; comity, concord, harmony; casualness, easygoingness, informality, laid-backness, relaxednessNear Antonyms clamor, din, noise, racketAntonyms bustle, commotion, hubbub, hurly-burly, pandemonium, tumult, turmoil, unquietness, unrest, uproar

2 evenness of emotions or temper his serenity calmed those around him Synonyms aplomb, calmness, collectedness, composedness, composure, cool, coolness, countenance, equilibrium, imperturbability, placidity, repose, sangfroid, self-composedness, self-possession, equanimity, tranquillity (or tranquility), tranquilnessRelated Words assurance, confidence, poise, self-assurance, self-assuredness, self-confidence, self-trust; easygoingness, laid-backness; apathy, detachment, impassivity, indifference, insensibility, numbness, phlegm, unconcernNear Antonyms alarm (also alarum), anxiety, anxiousness, apprehension, apprehensiveness, care, concern, disquiet, solicitude, uneasiness, worry; excitability, excitableness, nervousness; disturbanceAntonyms agitation, discomposure, perturbation

3 freedom from disquieting or oppressive thoughts or emotions the momentary serenity experienced during his lunchtime rambles gets him through the rest of the workday Synonyms calm, calmness, heartsease, peacefulness, placidity, sereneness, peace, tranquillity (or tranquility)Related Words content, contentment, ease; comfort, consolation, relief, solace; quiet, quietude, reposeNear Antonyms care, concern, perturbation; strain, stress, tenseness, tension; consternation, desperateness, desperation, discomfort, discomposure, dismay, distraction, distress, disturbance, edginess, jitters, jumpiness, nervousness; fear, fearfulness, torment, upset; doubt, dread, foreboding, incertitude, misgiving, presentiment, suspense, uncertaintyAntonyms agitation, alarm (also alarum), anguish, anxiety, anxiousness, apprehension, apprehensiveness, uneasiness, vexation, worry