cunning
/ˈkə-niŋ/
adjective
dexterous or crafty in the use of special resources (such as skill or knowledge) or in attaining an end
characterized by wiliness and trickery
prettily appealing : cute
a cunning plotter
noun
dexterous skill and subtlety (as in inventing, devising, or executing)
craft, slyness
knowledge, learning
high-ribbed vault … with perfect cunning framed
noun
clever but morally bad and dishonest methods
He succeeded through a combination of charm and low cunning.