Wily

Wil"y (?), a. [Compar. Wilier (?); superl. Wiliest.] [From Wile.] Full of wiles, tricks, or stratagems; using craft or stratagem to accomplish a purpose; mischievously artful; subtle. "Wily and wise." Chaucer. "The wily snake." Milton.

This false, wily, doubling disposition of mind.
South.

Syn. -- Cunning; artful; sly; crafty. See Cunning.