Roget's Thesaurus

#940. Improbity

Nouns

improbity; dishonesty, dishonor; deviation from rectitude; disgrace etc. (disrepute) 874; fraud etc. (deception) 545; lying etc. 544; bad faith, Punic faith; mala fides [Lat.], Punica fides [Lat.]; infidelity; faithlessness etc. adj.; Judas kiss, betrayal. breach of promise, breach of trust, breach of faith; prodition, disloyalty, treason, high treason; apostasy etc. (tergiversation) 607; nonobservance etc. 773. shabbiness etc. adj.; villainy, villany; baseness etc. adj.; abjection, debasement, turpitude, moral turpitude, laxity, trimming, shuffling. perfidy; perfidiousness etc. adj.; treachery, double dealing; unfairness etc. 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 etc. (flattery) 933.

Verbs

be dishonest etc. adj.; play false; break one's word, break one's faith, break one's promise; jilt, betray, forswear; shuffle etc. (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.

Adjectives

dishonest, dishonorable; unconscientious, unscrupulous; fraudulent etc. 545; knavish; disgraceful etc. (disreputable) 974; wicked etc. 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.

Adverbs

dishonestly etc. adj.; mala fide [Lat.], like a thief in the night, by crooked paths.

Interjections

O tempora!, O mores!, [Cicero].

Phrases

corruptissima respublica plurimae leges [Lat.] [Tacitus].