n. 25B6; noun POISE, self-assurance, self-confidence, calmness, composure, collectedness, level-headedness, sangfroid, equilibrium, equanimity; informal unflappability.
APLOMB
Meaning of APLOMB in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012