clever

adjectives

showing self-interest and shrewdness in dealing with others

"a cagey lawyer"; "too clever to be sound"

cagey, cagy, canny, clever

mentally quick and resourceful

"an apt pupil"; "you are a clever man...you reason well and your wit is bold"-Bram Stoker

apt, clever

is derived from

showing inventiveness and skill

"a clever gadget"; "the cunning maneuvers leading to his success"; "an ingenious solution to the problem"

clever, cunning, ingenious

is derived from