SYN
Janus, Machiavellianism, ambidexterity, ambiguity, ambivalence, artfulness, artifice, bad faith, biformity, bifurcation, conjugation, craft, cunning, deceit, deceitfulness, dichotomy, dirty pool, dirty trick, dirty work, dishonesty, dissemblance, dissimulation, double-dealing, doubleness, doubleness of heart, doublethink, doubling, dualism, duality, duplexity, duplication, equivocality, faithlessness, falseheartedness, falseness, foul play, furtiveness, guile, halving, hypocrisy, improbity, indirection, insidiousness, irony, low cunning, pairing, perfidiousness, perfidy, polarity, shiftiness, sneak attack, sneakiness, surreptitiousness, treacherousness, treachery, twinning, two-facedness, twoness, underhandedness, wile,