The definition of an upset is an unexpected victory.
implies great coolness and presence of mind in dangerous or trying circumstances
implies a casual indifference to or a cool detachment from situations that might be expected to disturb one emotionally
implies a lofty, clear peace of mind that is not easily clouded by ordinary stresses or excitements
implies an inherent evenness of temper or disposition that is not easily disturbed
implies the disciplining of one's emotions in a trying situation or habitual self-possession in the face of excitement
Find another word for composure. In this page you can discover 76 synonyms, antonyms, idiomatic expressions, and related words for composure, like: self-control, control, calm, balance, assurance, ease, cool-headedness, collectedness, sang-froid, exuberance and aplomb.