| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | deceptive, false |
| Synonyms: | bamboozling, counterfeit, crafty, criminal, crooked, deceitful, devious, dishonest, dishonorable, double-dealing, duplicitous, fake, forged, mock, phony, pseudo, sham*, spurious, swindling, treacherous, tricky |
| Antonyms: | authentic, genuine, honest, real, valid |
| Main Entry: | insincere |
| Part of Speech: | adjective |
| Definition: | dishonest, pretended |
| Synonyms: | ambidextrous, backhanded, deceitful, deceptive, devious, disingenuous, dissembling, dissimulating, double, double-dealing, duplicitous, evasive, faithless, fake, false, hollow, hypocritical, lying, mendacious, perfidious, phony, pretentious, put-on, shifty, slick, sly, snide, two-faced, unfaithful, untrue, untruthful |
| Antonyms: | forthright, frank, honest, open, sincere |
| Main Entry: | lying |
| Part of Speech: | adjective |
| Definition: | dishonest |
| Synonyms: | committing perjury, deceitful, deceptive, delusive, delusory, dissembling, dissimulating, double-crossing, double-dealing, equivocating, false, falsifying, fibbing, guileful, inventing, mendacious, misleading, misrepresenting, misstating, perfidious, prevaricating, shifty, treacherous, tricky, two-faced, two-timing, unreliable, untruthful, wrong |
| Antonyms: | direct, frank, honest |
| Main Entry: | perfidious |
| Part of Speech: | adjective |
| Definition: | treacherous |
| Synonyms: | betraying, deceitful, deceptive, double-crossing, double-dealing, faithless, false, insidious, misleading, recreant, shifty, slick*, snake in the grass, traitorous, two-faced, two-timing, undependable, unfaithful, unloyal, unreliable, untrustworthy |
| Main Entry: | sly |
| Part of Speech: | adjective |
| Definition: | clever, devious |
| Synonyms: | arch, artful, astute, bluffing, cagey, calculating, canny, captious, conniving, covert, crafty, crooked, cunning, deceitful, deceptive, delusive, designing, dishonest, dishonorable, dissembling, double-dealing, elusive, foxy, furtive, guileful, illusory, impish, ingenious, insidious, intriguing, mean, mischievous, plotting, roguish, scheming, secret, sharp, shifty, shrewd, slick, smart, smooth, sneaking, stealthy, subtle, traitorous, treacherous, tricky, underhand, unscrupulous, wily |
| Antonyms: | honest, open, simple, straight, straightforward, unclever |
| Main Entry: | sneaky |
| Part of Speech: | adjective |
| Definition: | underhanded, dishonest |
| Synonyms: | base, contemptible, cowardly, deceitful, devious, disingenuous, double-dealing, duplicitous, furtive, guileful, indirect, low, malicious, mean, nasty, recreant, secretive, shifty, slippery, sly, sneaking, snide, stealthy, surreptitious, tricky, underhand, unreliable, unscrupulous, untrustworthy, yellow* |
| Antonyms: | aboveboard, candid, forthright, frank, honest |
| Main Entry: | treacherous |
| Part of Speech: | adjective |
| Definition: | dishonest, disloyal |
| Synonyms: | betraying, catchy, deceitful, deceptive, double-crossing, double-dealing, duplicitous, faithless, false, false-hearted, fly-by-night, insidious, misleading, perfidious, recreant, shifty, slick*, slippery*, snake in the grass, traitorous, treasonable, tricky, two-faced, two-timing, undependable, unfaithful, unloyal, unreliable, untrue, untrustworthy |
| Antonyms: | forthright, honest, loyal, true |
| Main Entry: | two-faced |
| Part of Speech: | adjective |
| Definition: | deceitful |
| Synonyms: | artful, backstabbing, beguiling, crafty, cunning, deceiving, deceptive, dishonest, double-dealing, foxy, fraudulent, guileful, hypocritical, insincere, knavish, lying, misleading, shifty, sly, sneaky, tricky, underhanded, untruthful |
| Main Entry: | unprincipled |
| Part of Speech: | adjective |
| Definition: | corrupt |
| Synonyms: | abandoned, amoral, bent*, cheating, conscienceless, crooked, deceitful, devious, dirty-dealing, dishonest, dissolute, double-crossing, double-dealing, immoral, licentious, mercentary, praetorian, profligate, reprobate, shady, sly, stop-at-nothing, tricky, two-faced, two-timing, unconscionable, underhand, unethical, unprofessional, unscrupulous, venal, wanton |
| Antonyms: | ethical, moral, principled |