adj.
Pronunciation: - ' länt, - ˌ länt, -l ə nt
Function: adjective
Etymology: French, from Old French, from present participle of nonchaloir to disregard, from non- + chaloir to concern, from Latin cal ē re to be warm ― more at LEE
Date: circa 1734
: having an air of easy unconcern or indifference
synonyms see COOL
– non · cha · lant · ly adverb