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nonchalant

[ non-shuh-lahnt, non-shuh-lahnt, -luhnt ]
/ ˌnɒn ʃəˈlɑnt, ˈnɒn ʃəˌlɑnt, -lənt /
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adjective
coolly unconcerned, indifferent, or unexcited; casual: His nonchalant manner infuriated me.
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Origin of nonchalant

First recorded in 1725–35; from French nonchalant, present participle of obsolete nonchaloir “to lack warmth (of heart), be indifferent,” equivalent to non- prefix meaning “not” + chaloir, from Latin calēre “to be warm”; see non-, -ant

OTHER WORDS FROM nonchalant

non·cha·lant·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use nonchalant in a sentence

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
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