Definition of Guileful

Babylon English Dictionary
deceitful; cunning, sly, treacherous
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Guileful Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(a.)
Full of guile; characterized by cunning, deceit, or treachery; guilty.
  
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
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guileful
\guile"ful\ (?), a. full of guile; characterized by cunning, deceit, or treachery; guilty. -- guile"ful*ly , adv. -- guile"ful*ness , n.
guileful
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 dick"; "a wily old attorney" [syn: crafty, cunning, dodgy, foxy, knavish, slick, sly, tricksy, tricky, wily]



WordNet 2.0

Adjective
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 Dik"; "a wily old attorney"
(synonym) crafty, cunning, dodgy, foxy, knavish, slick, sly, tricksy, tricky, wily
(similar) artful