a very casual attitude; a worry-free or carefree attitude. You must get rid of your devil-may-care attitude if you want to succeed.She acts so thoughtless—with her devil-may-care manner.
Fig. a skeptical attitude; an uncertain attitude in which someone will just wait to see what happens before reacting. John thought that Mary couldn't do it, but he took a wait-and-see attitude. His wait-and-see attitude seemed to indicate that he didn't really care what happened.