Slick
Part of speech: noun
Definition: A covering of liquid, particularly oil. A tire with a smooth surface instead of a tread pattern, often used in auto racing. A helicopter.
Part of speech: adjective
Definition: Slippery due to a covering of liquid; often used to describe appearances. Appearing expensive or sophisticated. Superficially convincing but actually untrustworthy. Clever, making an apparently hard task easy; often used sarcastically. Extraordinarily great or special.
Part of speech: verb
Definition: To make slick
Example sentence: We were told our campaign wasn't sufficiently slick. We regard that as a compliment.
Cunning
Part of speech: noun
Definition: The skill of being cunning, sly, conniving, or deceitfulAptitude in performance; skill, proficiency.
Part of speech: adjective
Definition: Sly; crafty; clever in surreptitious behaviour.Skillful, artful.Cute, appealing.
Example sentence: The art of using deceit and cunning grow continually weaker and less effective to the user.