insouciant
adjective
[ ɪnˈsuːsɪənt ]
• showing a casual lack of concern.
• "an insouciant shrug"
Similar:
nonchalant,
untroubled,
unworried,
unruffled,
unconcerned,
lacking concern,
indifferent,
blasé,
heedless,
relaxed,
calm,
equable,
equanimous,
serene,
composed,
casual,
easy,
easy-going,
airy,
breezy,
carefree,
free and easy,
free from care,
free from worry,
happy-go-lucky,
light-hearted,
frivolous,
unserious,
cool,
laid back,
upbeat,
