Open English Wordnet
Adjectives
(s)cagey, cagy, canny, clevershowing self-interest and shrewdness in dealing with others“a cagey lawyer”,
“too clever to be sound” (s)apt, clevermentally quick and resourceful“an apt pupil”,
“you are a clever man … you reason well and your wit is bold” (Bram Stoker) (s)clever, cunning, ingeniousshowing inventiveness and skill“a clever gadget”,
“the cunning maneuvers leading to his success”,
“an ingenious solution to the problem”