nonchalant

[ non-shuh-lahnt, non-shuh-lahnt, -luhnt ]
/ ˌnɒn ʃəˈlɑnt, ˈnɒn ʃəˌlɑnt, -lənt /

adjective

coolly unconcerned, indifferent, or unexcited; casual: His nonchalant manner infuriated me.

Origin of nonchalant

1725–35; < French nonchalant, present participle of obsolete nonchaloir to lack warmth (of heart), be indifferent, equivalent to non- non- + chaloir < Latin calēre to be warm. See -ant

OTHER WORDS FROM nonchalant

non·cha·lant·ly, adverb
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Examples from the Web for nonchalant

British Dictionary definitions for nonchalant

nonchalant
/ (ˈnɒnʃələnt) /

adjective

casually unconcerned or indifferent; uninvolved

Derived forms of nonchalant

nonchalance, nounnonchalantly, adverb

Word Origin for nonchalant

C18: from French, from nonchaloir to lack warmth, from non- + chaloir, from Latin calēre to be warm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012