The disposition to employ one's skill in an artful manner; craftiness; guile; artifice; skill of being cunning, sly, conniving, or deceitful.
The natural wit or instincts of an animal.
Practical knowledge or experience; aptitude in performance; skill, proficiency; dexterity.
Practical skill employed in a secret or crafty manner; craft; artifice; skillful deceit; art or magic.
Sly; crafty; clever in surreptitious behaviour.
An operative person or thing.
Any of a class of behaviors that produce consequences by operating (i.e., acting) upon the environment.
That operates to produce an effect.