nefarious Definition

villainous, wicked, sinister, evil, pernicious, insidious, despicable, ignoble, vile, reprehensible, malicious, heinous, odious, unholy, wickedness, obnoxious, perverse, hateful, iniquitous, abhorrent, outrageous, harmful, shameful, hideous, malignant, abominable, injurious, vicious, notorious, disgraceful, deleterious, bad, heretical, gruesome, viciousness, insufferable, unspeakable, ominous, infamous, cutthroat, detrimental, prejudicial, horrible, horrific, terrible, appalling, damaging, negative, atrocious, ugly, horrendous, disastrous, dreadful, awful, derelict, inclement, dire, grim, fatal, adverse, ill-fated, modern-day, devious, dastardly, malevolent, diabolical, devilish, murderous, unsavory, duplicitous, unscrupulous, deceitful, treasonous, loathsome, demonic, traitorous, satanic, underhanded, diabolic, fiendish, conspiratorial, mischievous, sleazy, unethical, perfidious, dishonest, sneaky, cunning, machiavellian, subversive, malign, shadowy, disreputable, venal, shady, villainousness, scelestic, fascistic, corrupt, covert,