Machiavellian, ambidextrous, artful, calculating, chiseling, collusive, covinous, crafty, crooked, cunning, deceitful, dishonest, disingenuous, double-dealing, double-faced, double-minded, double-tongued, double, doublehearted, duplicitous, faithless, false-principled, false, finagling, forsworn, fraudulent, furtive, guileful, indirect, insidious, insincere, perfidious, perjured, scheming, sharp, shifty, slippery, sneaky, surreptitious, treacherous, trickish, tricky, two-faced, uncandid, underhand, underhanded, unfrank, unsincere, untruthful, wily