Destitute of care or forethought; heedless of consequences or of the future; indifferent; unconcerned.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. marked by blithe unconcern
Word Usage
"There's a wonderful cover shot to the 1958 album Legrand Jazz, with pianist-composer Michel Legrand wearing an expression of insouciant expectation, Gauloise at the corner of his mouth, indolently summoning invisible sidemen to action."