concealing crafty designs for advancing your own interest; "a selfish and designing nation obsessed with the dark schemes of European intrigue"- W.Churchill; "a scheming wife"; "a scheming gold digger"
having or showing knowledge and skill and aptitude; "adept in handicrafts"; "an adept juggler"; "an expert job"; "a good mechanic"; "a practiced marksman"; "a proficient engineer"; "a lesser-known but no less skillful composer"; "the effect was achieved by skillful retouching"