knav·ish /ˈnevɪʃ/
 (a.)惡棍似的;流氓的;不正的
 Knav·ish, a.
 1. Like or characteristic of a knave3; given to knavery; trickish; fraudulent; dishonest; villainous; as, a knavish fellow, or a knavish trick. “Knavish politicians.”
 2. Mischievous; roguish; waggish; rascally.
 Cupid is knavish lad,
 Thus to make poor females mad.   --Shak.
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 knavish
      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, slick, sly, tricksy, tricky,
             wily]