Wil·y a. [Compar. Wilier superl. Wiliest.]  Full of wiles, tricks, or stratagems; using craft or stratagem to accomplish a purpose; mischievously artful; subtle.  “Wily and wise.” --Chaucer. “The wily snake.”
     This false, wily, doubling disposition of mind.   --South.
  Syn: -- Cunning; artful; sly; crafty.  See Cunning.
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  wily
       adj : 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" [syn: crafty, cunning, dodgy,
              foxy, guileful, knavish, slick, sly, tricksy,
              tricky]
       [also: wiliest, wilier]