insouciant.

Showing a relaxed lack of worry or concern.

Use it for

Words that belong together

• insouciant shrug
• insouciant manner

On the page

He met the news with an insouciant shrug.

Her insouciant manner made the waiting seem effortless.

Usage notes

Primary category: psychological / character. Forms: Comparative more insouciant; superlative most insouciant where gradation is meaningful. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.