| Adj. | 1. | sly - marked by skill in deception; "cunning men often pass for wise"; "deep political machinations"; "a foxy scheme"; "a slick evasive answer"; "sly as a fox"; "tricky Dik"; "a wily old attorney"artful - marked by skill in achieving a desired end especially with cunning or craft; "the artful dodger"; "an artful choice of metaphors" | |