serenity
(noun)
noun
1. a disposition free from stress or emotion
Similar word(s): placidity, quiet, repose, tranquility, tranquillity
Definition categories: attribute, calm, calmness, composure, equanimity
2. the absence of mental stress or anxiety
Similar word(s): ataraxis, heartsease, peace, peacefulness, repose
Definition categories: feeling, quietness, quietude, tranquility, tranquillity