Read the dictionary definition of devilish. All definitions for this word.
1. showing the cunning or ingenuity or wickedness typical of a devil
1. devilish schemes
2. the cold calculation and diabolic art of some statesmen
3. the diabolical expression on his face
4. a mephistophelian glint in his eye
2. playful in an appealingly bold way
1. a roguish grin
3. in a playfully devilish manner
1. the socialists are further handicapped if they believe that capitalists are not only wicked but also devilishly clever