1.
[syn: casual, insouciant, nonchalant]
The Collaborative International Dictionary of English v.0.48:
Insouciant \In`sou`ciant"\, a. [F.]
Careless; heedless; indifferent; unconcerned. --J. S. Mill.
[1913 Webster]
WordNet (r) 3.0 (2006):
insouciant
adj 1: marked by blithe unconcern; "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" [syn: casual, insouciant, nonchalant]