lacking principles or scruples; "the rascally rabble"; "the tyranny of a scoundrelly aristocracy" - W.M. Thackaray; "the captain was set adrift by his roguish crew" पर्याय: roguish, scoundrelly, blackguardly,
playful in an appealingly bold way; "a roguish grin" पर्याय: devilish, roguish,