aplomb

n. complete self-confidence, composure, poise, self-assurance

Noun
1. great coolness and composure under strain; "keep your cool"
(synonym) assuredness, cool, poise, sang-froid
(hypernym) composure, calm, calmness, equanimity

n. aplomb, complete self-confidence, composure, self-assurance

n. aplomb, balance; assurance

n. self-possession, aplomb, composure