Nonchalance

مترادف و متضاد nonchalance

1. noun A stable, calm state of the emotions
   Synonyms: aplomb, balance, collectedness, composure, coolness, equanimity, imperturbability, imperturbableness, poise, sang-froid, self-possession, unflappability, cool
2. noun The trait of remaining calm and seeming not to care; a casual lack of concern
   Synonyms: indifference, composure, insouciance, apathy, disregard, unconcern