guileful Synonyms

crafty tricksy tricky sly knavish cunning wily foxy slick dodgy smooth smart slyly shifty shrewd slinking slippery sneaky machiavellian two-faced duplicitous untrustworthy unscrupulous underhanded underhand treacherous subtle sharp shady devious designing deceptive deceitful crooked artful conniving clever canny calculating dishonest disingenuous scheming plotting pawky mealy-mouthed manipulative insidious ingenious furtive fraudulent