guileful

guileful
    adj 1: 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 Dick"; "a
           wily old attorney" [syn: {crafty}, {cunning}, {dodgy},
           {foxy}, {guileful}, {knavish}, {slick}, {sly}, {tricksy},
           {tricky}, {wily}]
    

Guileful \Guile"ful\, a.
   Full of guile; characterized by cunning, deceit, or
   treachery; guilty. -- {Guile"ful*ly}, adv. --
   {Guile"ful*ness}, n.
   [1913 Webster]
    

70 Moby Thesaurus words for "guileful":
      Byzantine, Machiavellian, Machiavellic, acute, arch, artful,
      astute, cagey, calculating, canny, chiseling, clever, collusive,
      covinous, crafty, cunning, cute, deceitful, deep, deep-laid,
      designing, devious, diplomatic, duplicitous, false, falsehearted,
      feline, finagling, foxy, fraudulent, furtive, indirect, ingenious,
      insidious, inventive, knowing, pawky, politic, ready, resourceful,
      scheming, serpentine, sharp, shifty, shrewd, slick, slippery, sly,
      smooth, snaky, sneaking, sneaky, sophistical, stealthy, strategic,
      subtile, subtle, supple, surreptitious, tactical, treacherous,
      trickish, tricksy, tricky, two-faced, underhand, underhanded,
      vulpine, wary, wily