The Collaborative International Dictionary
Composedness
Composed \Com*posed"\, a. Free from agitation; calm; sedate; quiet; tranquil; self-possessed.
The Mantuan there in sober triumph sate,
Composed his posture, and his look sedate.
--Pope.
-- Com*pos"ed*ly, adv. -- Com*pos"ed*ness, n.
Wiktionary
composedness
n. The state or quality of being composed.