Faithless

• POS: Adjective
• HYPHEN: faith=less

CIDE DICTIONARY

Faithless, a. 

•  Not believing; not giving credit.  [1913 Webster]

  "Be not faithless, but believing."  [1913 Webster]
•  Not believing on God or religion; specifically, not believing in the Christian religion.  Shak.  [1913 Webster]
•  Not observant of promises or covenants.  [1913 Webster]
•  Not true to allegiance, duty, or vows; perfidious; trecherous; disloyal; not of true fidelity; inconstant, as a husband or a wife.  [1913 Webster]

  "A most unnatural and faithless service."  [1913 Webster]
•  Serving to disappoint or deceive; delusive; unsatisfying.  Goldsmith.

OXFORD DICTIONARY

Faithless, adj.
1 false, unreliable, disloyal.
2 without religious faith.

Derivative

faithlessly adv. faithlessness n.

THESAURUS

Faithless

Machiavellian, agnostic, ambidextrous, apostate, artful, atheist, atheistic, capricious, changeable, changeful, collaborative, conscienceless, crafty, creedless, crooked, cunning, deceitful, derelict, disaffected, disbelieving, dishonest, disloyal, double, double-dealing, double-faced, double-minded, double-tongued, doublehearted, doubting, duplicitous, false, false-principled, falsehearted, fickle, fluctuating, freethinking, heathen, heretical, hypocritical, inconstant, incredulous, infidel, infidelic, insincere, irreligious, minimifidian, nonbelieving, not true to, nullifidian, of bad faith, pagan, perfidious, recreant, renegade, repudiative, sceptical, shifting, shifty, tergiversant, tergiversating, traitorous, treacherous, treasonable, treasonous, trothless, two-faced, unbelieving, unchristian, unconfident, unconverted, unconvinced, unfaithful, unloyal, unreliable, unscrupulous, unstable, unsteadfast, untrue, untrustworthy, wavering, without faith

ROGET THESAURUS

Faithless

Irreligion

N irreligion, indevotion, godlessness, ungodliness, laxity, quietism, skepticism, doubt, unbelief, disbelief, incredulity, incredulousness, want of faith, want of belief, pyrrhonism, bout, agnosticism, atheism, deism, hylotheism, materialism, positivism, nihilism, infidelity, freethinking, antichristianity, rationalism, neology, atheist, skeptic, unbeliever, deist, infidel, pyrrhonist, giaour, heathen, alien, gentile, Nazarene, espri fort, freethinker, latitudinarian, rationalist, materialist, positivist, nihilist, agnostic, somatist, theophobist, irreligious, indevout, undevout, devoutless, godless, graceless, ungodly, unholy, unsanctified, unhallowed, atheistic, without God, skeptical, freethinking, unbelieving, unconverted, incredulous, faithless, lacking faith, deistical, unchristian, antichristian, worldly, mundane, earthly, carnal, worldly minded, irreligiously.

Improbity

N improbity, dishonesty, dishonor, deviation from rectitude, disgrace, fraud, lying, bad faith, Punic faith, mala fides, Punica fides, infidelity, faithlessness, Judas kiss, betrayal, breach of promise, breach of trust, breach of faith, prodition, disloyalty, treason, high treason, apostasy, nonobservance, shabbiness, villainy, villany, baseness, abjection, debasement, turpitude, moral turpitude, laxity, trimming, shuffling, perfidy, perfidiousness, treachery, double dealing, unfairness, 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, dishonest, dishonorable, unconscientious, unscrupulous, fraudulent, knavish, disgraceful, wicked, 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, 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, dishonestly, mala fide, like a thief in the night, by crooked paths, Int, O tempora!, O mores!, corruptissima respublica plurimae leges.

Falsehood

N falsehood, falseness, falsity, falsification, deception, untruth, guile, lying, untruth, guile, lying, misrepresentation, mendacity, perjury, false swearing, forgery, invention, fabrication, subreption, covin, perversion of truth, suppression of truth, suppressio veri, perversion, distortion, false coloring, exaggeration, prevarication, equivocation, shuffling, fencing, evasion, fraud, suggestio falsi, mystification, simulation, dissimulation, dissembling, deceit, blague, sham, pretense, pretending, malingering, lip homage, lip service, mouth honor, hollowness, mere show, mere outside, duplicity, double dealing, insincerity, hypocrisy, cant, humbug, jesuitism, jesuitry, pharisaism, Machiavelism, organized hypocrisy, crocodile tears, mealy-mouthedness, quackery, charlatanism, charlatanry, gammon, bun-kum, bumcombe, flam, bam, flimflam, cajolery, flattery, Judas kiss, perfidy, il volto sciolto i pensieri stretti, unfairness, artfulness, misstatement, false, deceitful, mendacious, unveracious, fraudulent, dishonest, faithless, truthless, trothless, unfair, uncandid, hollow-hearted, evasive, uningenuous, disingenuous, hollow, sincere, Parthis mendacior, forsworn, artificial, contrived, canting, hypocritical, jesuitical, pharisaical, tartuffish, Machiavelian, double, double tongued, double faced, double handed, double minded, double hearted, double dealing, Janus faced, smooth-faced, smooth spoken, smooth tongued, plausible, mealy-mouthed, affected, collusive, collusory, artful, perfidious, spurious, untrue, falsified, covinous, falsely, a la tartufe, with a double tongue, silly, blandae mendacia lingua, falsus in uno falsus in omnibus, I give him joy that's awkward at a lie, la mentira tiene las piernas cortas, O what a goodly outside falsehood hath.