insouciant

Definitions

Showing a casual lack of concern; indifferent.

Free from anxiety, worry, or disturbance; carefree.

Examples

He walked through the chaotic office with an insouciant air, seemingly unaffected by the looming deadline.

Her insouciant attitude toward the serious consequences of her actions left the committee feeling quite frustrated.

Synonyms

carefree nonchalant indifferent unconcerned blithe easygoing untroubled

Antonyms

anxious concerned worried apprehensive solicitous troubled careworn