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nonchalant

[non-shuh-lahnt, non-shuh-lahnt, -luh nt]
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adjective
  1. 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
Related formsnon·cha·lant·ly, adverb

Synonyms

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cool, calm, collected, composed.

Antonyms

excitable.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for nonchalantly

Contemporary Examples

Historical Examples

  • He took one, and placed it nonchalantly in his waistcoat pocket, as he had seen the others do.

    K

    Mary Roberts Rinehart

  • "Well, Baker," said Burr nonchalantly, nodding to his former assistant.

  • "I know more about Miss Doris Leighton than you think," she said, nonchalantly.

    Miss Pat at School

    Pemberton Ginther

  • Nonchalantly he turned the letter face downward and went on with the meal.

    The Lure of the Mask

    Harold MacGrath

  • Nonchalantly, the fat man dug them out and handed them over.

    The Colors of Space

    Marion Zimmer Bradley


British Dictionary definitions for nonchalantly

nonchalant

adjective
  1. casually unconcerned or indifferent; uninvolved
Derived Formsnonchalance, nounnonchalantly, adverb

Word Origin

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

Word Origin and History for nonchalantly

nonchalant

adj.

1734, from French nonchalant, present participle of nonchaloir "be indifferent to, have no concern for" (13c.), from non- "not" (see non-) + chaloir "have concern for," ultimately from Latin calere "be hot" (see calorie). French chaland "customer, client" is of the same origin. Related: Nonchalantly.

Online Etymology Dictionary, © 2010 Douglas Harper