unruffled[adjective]Synonyms: cool, collected, composed, disimpassioned, imperturbable, nonchalant, unflappable
Antonyms: discomposed, ruffled
[TahlilGaran] English Synonym Dictionary ▲
un‧ruf‧fled /ʌnˈrʌf
əld/
adjective calm and not upset by a difficult situation – use this to show approval:
Emily remained completely unruffled by the chaos. [TahlilGaran] Dictionary of Contemporary English ▲