Synonyms of dishonest

1 Syllable
slyer, quack, bent, sliest, sly, slier, slyest, wily
2 Syllables
falser, bluffing, venal, roguish, corrupt, cunning, swindling, faithless, false, thieving, tricky, foxy, shady, foxier, sneaking, wrongful, unctuous, quacker, thievish, shifty, crafty, sneaky, falsest, shiftier, crooked, witted, unfair, recreant, buyable, dodgy, cheating, canting, shiftiest
3 Syllables
retiary, deceitful, insidious, fictitious, villainous, unholy, misleading, unsporting, uncandid, invented, blackhearted, designing, underhand, treacherous, perfidious, slippery, larcenous, plunderous, backbiting, sinister, fraudulent, mendacious, hoodwinking, traitorous, immoral, two-faced, two-timing, lubricious, guileful, cooked-up, deceiving
4 Syllables
untrustworthy, underhanded, elusive, corruptible, misbegotten, unscrupulous, deceptive, dirty-dealing, false-hearted, double-crossing, unprincipled, double-dealing, duplicitous, disingenuous, unconverted, unconscientious
5 Syllables
disreputable, unconscionable, kleptomaniacal, exploitative
6 Syllables
prevaricatory
7 Syllables
misrepresentative