perfidiousness Definition

perfidy, treachery, disloyalty, prodition, detestability, fedity, deceit, poltroonery, dishonesty, wickedness, ingratitude, betrayal, pusillanimousness, faithlessness, supercherie, cowardice, vileness, deceitfulness, meanness, cruelty, malignity, extramarital sex, unequity, unfaithfulness, viciousness, baseness, mendacity, duplicity, barbarity, abominableness, protervity, chicaner, treacherousness, insincerity, rudity, improbity, maltalent, inhumanity, vitiosity, thievishness, hypocrisy, pusillanimity, ungratefulness, chicanery, undutifulness, ruthlessness, scurviness, treason, callousness, impertinency, parvanimity, knavery, heartlessness, vility, arrogance, proditorious, viciosity, shamelessness, deviousness, abusion, underhandedness, unscrupulousness, immorality, disleal, perversity, deception, insidiousness, dissimulation, cowardliness, mortifiedness, depravity, iniquity, indevotion, impiety, calumny, impudicity, insolence, indiscreetness, cautel, imposture, high treason, depravement, double dealer, inconsiderateness, subterfuge, nefariousness, improbation, cruelness, roguery, puppyism, despect, odible, malfeasance, gutlessness, evilness, peccancy, unkindness, unthankfulness, infidelity, rapacity,