composure (n.)

• acceptance
• aplomb
• ataraxia
• calmness
• comfort
• constraint
• contemplation
• content
• contentedness
• contentment
• control
• cool
• coolness
• countenance
• discipline
• ease
• euphoria
• expectation
• fulfillment
• happiness
• imperturbability
• independence
• nirvana
• peace
• peacefulness
• philosophy
• phlegm
• placidity
• placidness
• possession
• quiescence
• quiescency
• quiet
• quietism
• quietness
• quietude
• reconciliation
• repose
• resignation
• rest
• restfulness
• restraint
• satisfaction
• satori
• self-command
• self-control
• self-denial
• self-discipline
• self-government
• self-possession
• self-restraint
• serenity
• silence
• sleep
• slumber
• stillness
• tranquillity
• well-being