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perfidious

adjective

Synonyms and Antonyms of perfidious

not true in one's allegiance to someone or something
  • A perfidious campaign worker revealed the senator's strategy to his leading rival for the nomination.
Synonyms of perfidious

disloyal, faithless, false, fickle, inconstant, recreant, traitorous, treacherous, unfaithful, untrue
Words Related to perfidious

irresponsible, trustless, undependable, unreliable, untrustworthy

faltering, hesitant, vacillating, wavering

dubious, irresolute, uncertain

apathetic, dispassionate, uninterested
Near Antonyms of perfidious

dependable, dutiful, reliable, responsible, solid, tried, tried-and-true, trustable, trustworthy, trusty

unfaltering, unhesitating, unwavering

determined, intent, resolute

confirmed, dyed-in-the-wool, inveterate, sworn

ardent, avid, enthusiastic, fervent, fervid, impassioned, passionate
Antonyms of perfidious

constant, dedicated, devoted, devout, faithful, fast, loyal, staunch (also stanch), steadfast, steady, true

Synonym Discussion of perfidious

faithless, false, disloyal, traitorous, treacherous, perfidious mean untrue to what should command one's fidelity or allegiance. faithless applies to any failure to keep a promise or pledge or any breach of allegiance or loyalty.
    • faithless allies
false stresses the fact of failing to be true in any manner ranging from fickleness to cold treachery.
    • betrayed by false friends
disloyal implies a lack of complete faithfulness to a friend, cause, leader, or country.
    • disloyal to their country
traitorous implies either actual treason or a serious betrayal of trust.
    • traitorous acts punishable by death
treacherous implies readiness to betray trust or confidence.
    • a treacherous adviser
perfidious adds to faithless the implication of an incapacity for fidelity or reliability.
    • a perfidious double-crosser

Learn More about perfidious

  1. See words that rhyme with perfidious Dictionary: Definition of perfidious Spanish Central: Translation of perfidious Nglish: Translation of perfidious for Spanish speakers

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