Synonyms of deceptive

1 Syllable
slyer, mock, fake, off, sliest, sly, slick, slier, bum, slyest, wily
2 Syllables
artier, roguish, cunning, snide, false, arty, crocker, untrue, phony, tricky, truthless, foxy, unloyal, specious, sneaking, wilier, spurious, shifty, crafty, sneaky, catchy, seeming, scheming, perdu, dodgy, subtle, fishy, lying, rascal, jivey
3 Syllables
deceitful, casuistic, sophistic, simulant, fallacious, indirect, insidious, phoniness, dreamed-up, fictitious, beguiling, counterfeit, oblique, notional, dishonest, misleading, plausible, invented, fallible, designing, underhand, astucious, ambiguous, treacherous, perjured, perjurious, hollywood, perfidious, slippery, fraudulent, pharisaic, mendacious, unseeable, wraithlike, lubricious, two-faced, untruthful, scoundrelly, unfounded, pecksniffian, deceiving, deluding
4 Syllables
delusive, illusory, underhanded, unreliable, elusive, mealymouthed, invisible, falsehearted, dirty-dealing, counterfeited, false-hearted, serpentine, evasive, insincere, unauthentic, imposturous, elusory, unviewable, ambidextrous, mythomaniac, disingenuous, delusory, pharisaical
5 Syllables
hypocritical, unperceivable, imitative, imaginary