tranquillity

1 a state of freedom from storm or disturbance enjoyed the tranquillity of the snow-covered field at dusk Synonyms calmness, hush, peace, peacefulness, placidity, quiet, quietness, quietude, repose, restfulness, sereneness, serenity, still, stillness, calm (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 a psychotherapist valued for her tranquillity and ability to listen Synonyms aplomb, calmness, collectedness, composedness, composure, cool, coolness, countenance, equilibrium, imperturbability, placidity, repose, sangfroid, self-composedness, self-possession, serenity, equanimity (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 a mountain climber who finds inner tranquillity as he looks out from the edge of some lofty precipice Synonyms calm, calmness, heartsease, peacefulness, placidity, sereneness, serenity, peace (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