[in-soo-see-uhnt; French an-soo-syahn]
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Origin of insouciant

1820–30; < French, equivalent to in- in-3 + souciant present participle of soucier to worry < Vulgar Latin *sollicītāre, for Latin sollicitāre to disturb; see solicitous
Related formsin·sou·ci·ant·ly, adverb

Synonyms for insouciant

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British Dictionary definitions for insouciant


  1. carefree or unconcerned; light-hearted
Derived Formsinsouciance, nouninsouciantly, adverb

Word Origin for insouciant

C19: from French, from in- 1 + souciant worrying, from soucier to trouble, from Latin sollicitāre; compare solicitous
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 insouciant

1829, from French insouciant "careless, thoughtless, heedless," from in- "not" (see in- (1)) + souciant "caring," present participle of soucier "to care," from Latin sollicitare "to agitate" (see solicit). Related: Insouciantly.

Online Etymology Dictionary, © 2010 Douglas Harper