1. tranquillity, tranquility, quiet, order

usage: an untroubled state; free from disturbances

2. tranquillity, tranquility, quietness, quietude, calmness

usage: a state of peace and quiet

3. repose, quiet, placidity, serenity, tranquillity, tranquility, composure, calm, calmness, equanimity

usage: a disposition free from stress or emotion

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See also: tranquillity (Dictionary)