Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun serenity

2 senses of serenity

Sense 1
repose, quiet, placidity, serenity, tranquillity, tranquility -- (a disposition free from stress or emotion)
       => composure, calm, calmness, equanimity -- (steadiness of mind under stress; "he accepted their problems with composure and she with equanimity")

Sense 2
peace, peacefulness, peace of mind, repose, serenity, heartsease, ataraxis -- (the absence of mental stress or anxiety)
       => tranquillity, tranquility, quietness, quietude -- (a state of peace and quiet)