Main entry: raffish, rakish, devil-may-care
Definition: marked by a carefree unconventionality or disreputableness
Usage: a cocktail party given by some...raffish bachelors- Crary Moore
Main entry: devil-may-care, slaphappy, happy-go-lucky, harum-scarum, carefree, freewheeling
Definition: cheerfully irresponsible
Usage: carefree with his money; freewheeling urban youths; had a harum-scarum youth