অর্থ : Marked by blithe unconcern.
উদাহরণ :
An ability to interest casual students.
Showed a casual disregard for cold weather.
An utterly insouciant financial policy.
An elegantly insouciant manner.
Drove his car with nonchalant abandon.
Was polite in a teasing nonchalant manner.
সমার্থক : casual, insouciant
Nonchalant meaning in Bengali (Bangla).