- Casual lack of concern; indifference: an impression of boyish insoucianceMore example sentences
- As what W. H. Auden called the ‘dishonest decade’ grew grimmer, the New Yorker's editorial policy shifted from insouciance to concern.
- Wahlberg gives the same performance as in his last five movies and lacks the breezy insouciance the picture needs.
- Releasing a fierce battle cry, I pounded flailing fist after flailing fist onto him, oblivious to his insouciance and lack of flinching.
late 18th century: French, from insouciant, from in- 'not' + souciant 'worrying' (present participle of soucier).