devil-may-care

adj.	1.	cheerfully irresponsible.
	2.	marked by a carefree unconventionality or disreputableness.

Adj.	1.	devil-may-care - cheerfully irresponsible; "carefree with his money"; "freewheeling urban youths"; "had a harum-scarum youth" Synonyms: happy-go-lucky, harum-scarum, slaphappy, carefree, freewheeling
	2.	devil-may-care - marked by a carefree unconventionality or disreputableness; "a cocktail party given by some...raffish bachelors"- Crary Moore Synonyms: raffish, rakish

carefree, freewheeling, happy-go-lucky, harum-scarum, irresponsible, slaphappy