Machiavellian ambidextrous artful calculating chiseling collusive covinous crafty crooked cunning deceitful dishonest disingenuous double double-dealing double-faced double-minded double-tongued doublehearted duplicitous faithless FALSE false-principled 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