nonchalant
adjective
[ ˈnɒnʃ(ə)l(ə)nt ]
• (of a person or manner) feeling or appearing casually calm and relaxed; not displaying anxiety, interest, or enthusiasm.
• "she gave a nonchalant shrug"
Similar:
calm,
cool,
unconcerned,
collected,
and collected,
cool as a cucumber,
composed,
airy,
indifferent,
unemotional,
blasé,
dispassionate,
detached,
apathetic,
casual,
offhand,
insouciant,
laid-back,
Origin:
mid 18th century: from French, literally ‘not being concerned’, from the verb nonchaloir .
