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 disloyal, false, fickle, inconstant, faithless, recreant, traitorous, treacherous, unfaithful, untrueRelated Words irresponsible, trustless, undependable, unreliable, untrustworthy; faltering, hesitant, vacillating, wavering; dubious, irresolute, uncertain; apathetic, dispassionate, uninterestedNear Antonyms 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, passionateAntonyms constant, dedicated, devoted, devout, down-the-line, faithful, fast, loyal, staunch (also stanch), steadfast, steady, true
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