Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

rectitude; disgrace &c (disrepute) 874; fraud &c (deception) 545; lying &c 544; bad faith, Punic faith; mala fides [Lat.], Punica fides [Lat.]; infidelity; faithlessness &c adj.; Judas kiss, betrayal. breach of promise, breach of trust, breach of faith; prodition†, disloyalty, treason, high treason; apostasy &c (tergiversation) 607; nonobservance &c 773. shabbiness &c adj.; villainy, villany†; baseness &c adj.; abjection, debasement, turpitude, moral turpitude, laxity, trimming, shuffling. perfidy; perfidiousness &c adj.; treachery, double dealing; unfairness &c adj.; knavery, roguery, rascality, foul play; jobbing, jobbery; graft, bribery; venality, nepotism; corruption, job, shuffle, fishy transaction; barratry, sharp practice, heads I win tails you lose; mouth honor &c (flattery) 933. V. be dishonest &c adj.; play false; break one's word, break one's faith, break one's promise; jilt, betray, forswear; shuffle &c (lie) 544; live by one's wits, sail near the wind. disgrace oneself, dishonor oneself, demean oneself; derogate, stoop, grovel, sneak, lose caste; sell oneself, go over to the enemy; seal one's infamy. Adj. dishonest, dishonorable; unconscientious, unscrupulous; fraudulent &c 545; knavish; disgraceful &c (disreputable) 974; wicked &c 945. false-hearted, disingenuous; unfair, one-sided; double, double- hearted, double-tongued, double-faced; timeserving†, crooked, tortuous, insidious, Machiavelian, dark, slippery; fishy; perfidious, treacherous, perjured. infamous, arrant, foul, base, vile, ignominious, blackguard. contemptible, unrespectable, abject, mean, shabby, little, paltry, dirty, scurvy, scabby, sneaking, groveling, scrubby, rascally, pettifogging; beneath one. low-minded, low-thoughted†; base-minded. undignified, indign†; unbecoming, unbeseeming†, unbefitting; derogatory, degrading; infra dignitatem [Lat.], beneath one's dignity; ungentlemanly, ungentlemanlike; unknightly†, unchivalric†, unmanly, unhandsome; recreant, inglorious. corrupt, venal; debased, mongrel. faithless, of bad faith, false, unfaithful, disloyal; untrustworthy; trustless, trothless†; lost to shame, dead to honor; barratrous. Adv. dishonestly &c adj.; mala fide [Lat.], like a thief in the night, by crooked paths. Int. O tempora!†, O mores!, [Cicero]. Phr. corruptissima respublica plurimae leges [Lat.] [Tacitus].