marked by a carefree unconventionality or disreputableness; "a cocktail party given by some...raffish bachelors"- Crary Moore
cheerfully irresponsible; "carefree with his money"; "freewheeling urban youths"; "had a harum-scarum youth"
showing lack of care for consequences; "behaved like an irresponsible idiot"; "hasty and irresponsible action"
marked by defiant disregard for danger or consequences; "foolhardy enough to try to seize the gun from the hijacker"; "became the fiercest and most reckless of partisans"-Macaulay; "a reckless driver"; "a rash attempt to climb Mount Everest"
imprudently incurring risk; "do something rash that he will forever repent"- George Meredith
a series of unexpected and unpleasant occurrences; "a rash of bank robberies"; "a blizzard of lawsuits"