Main entry: mephistophelean, mephistophelian, devilish, diabolic, diabolical
Definition: showing the cunning or ingenuity or wickedness typical of a devil
Usage: devilish schemes; the cold calculation and diabolic art of some statesmen; the diabolical expression on his face; a mephistophelian glint in his eye
Main entry: roguish, rascally, devilish
Definition: playful in an appealingly bold way
Usage: a roguish grin
Main entry: devilish, devilishly
Definition: in a playfully devilish manner
Usage: the socialists are further handicapped if they believe that capitalists are not only wicked but also devilishly clever