[ˈnɒnʃəl(ə)nt], (Adjective)

Definitions:
- (of a person or manner) feeling or appearing casually calm and relaxed; not displaying anxiety, interest, or enthusiasm
(e.g: she gave a nonchalant shrug)


Phrases:

Origin:
mid 18th century: from French, literally ‘not being concerned’, from the verb nonchaloir