composed

The adjective composed describes someone who is calm and shows no nervousness or agitation. You may be very upset about your brother’s unkind remark, but your composed face doesn’t give away your feelings.

If you’re composed, that means you're free of emotion or nervousness — or at least you look that way. Composed typically describes an outward appearance, so you could be angry on the inside but still maintain a composed manner that hides what you’re really feeling. You’ll often hear the word used to describe someone who can keep everything under control during times of stress. You probably look composed even when you’re stressing out over your calculus exam.

Definitions of composed
1

adj serenely self-possessed and free from agitation especially in times of stress

“the performer seemed completely composed as she stepped onto the stage”
“I felt calm and more composed than I had in a long time”
Synonyms:
unagitated
not agitated or disturbed emotionally
calm, serene, tranquil, unagitated
not agitated; without losing self-possession
imperturbable, unflappable
not easily perturbed or excited or upset; marked by extreme calm and composure
collected, equanimous, poised, self-collected, self-contained, self-possessed
in full control of your faculties
cool, coolheaded, nerveless
marked by calm self-control (especially in trying circumstances); unemotional
unflurried, unflustered, unperturbed, unruffled
free from emotional agitation or nervous tension
dignified
having or expressing dignity; especially formality or stateliness in bearing or appearance
Antonyms:
discomposed
having your composure disturbed
agitated
troubled emotionally and usually deeply
abashed, chagrined, embarrassed
feeling or caused to feel uneasy and self-conscious
blushful, blushing, red-faced
having a red face from embarrassment or shame or agitation or emotional upset
bothered, daunted, fazed
caused to show discomposure
discombobulated, disconcerted
having self-possession upset; thrown into confusion
flustered, hot and bothered, perturbed, rattled
thrown into a state of agitated confusion; (`rattled' is an informal term)
unstrung
emotionally upset
undignified
lacking dignity
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