List of deceitful synonyms and deceitful related words.
Machiavellian, Machiavellic, acute, ambidextrous, arch, artful, astute, cagey, calculating, canny, chiseling, clandestine, clever, collusive, counterfeit, covinous, crafty, crooked, cunning, cute, deceptive, deep, deep-laid, delusive, delusory, designing, diplomatic, dishonest, disingenuous, double, double-dealing, double-faced, double-minded, double-tongued, doublehearted, duplicitous, faithless, false, false-principled, falsehearted, feline, finagling, forsworn, foxy, fraudulent, furtive, guileful, hypocritical, indirect, ingenious, insidious, insincere, inventive, knavish, knowing, lying, mendacious, misleading, pawky, perfidious, perjured, politic, ready, resourceful, roguish, scheming, serpentine, sharp, shifty, shrewd, slick, slippery, sly, smooth, snaky, sneaky, sophistical, stealthy, strategic, subtile, subtle, supple, surreptitious, tactical, treacherous, trickish, tricksy, tricky, two-faced, uncandid, underhand, underhanded, unfrank, unsincere, untrustworthy, untruthful, vulpine, wary, wily