pertaining to, characteristic of, or acting like a rogue; knavish or rascally.

playfully mischievous

a roguish smile.

adjective

beguiling , crafty , crooked , cunning , deceiving , deceptive , devilish , dishonest , fraudulent , impish , knavish , lying , naughty , playful , puckish , rascally , shifty , slick , sly , sneaky , tricky , underhand , underhanded , unprincipled , untruthful , aggravate , arch , bother , deceitful , mischievous , pawky , prankish , provoke , sportive , unscrupulous , waggish , wanton