Synonyms and related words :
apocalyptic, bad, baneful, bitchy, black, bodeful, boding, corroding, corrosive, corrupting, corruptive, counterproductive, cussed, damaging, dark, deadly, deleterious, detrimental, dire, direful, disadvantageous, disserviceable, distressing, doomful, dreary, evil, evil-starred, fateful, foreboding, gloomy, harmful, hateful, hurtful, ill, ill-boding, ill-fated, ill-omened, ill-starred, inauspicious, iniquitous, injurious, invidious, lethal, lowering, malefic, maleficent, malevolent, malicious, malign, malignant, mean, menacing, mischievous, nasty, noisome, noxious, of evil portent, ominous, ornery, pernicious, poisonous, portending, portentous, prejudicial, scatheful, sinister, somber, threatening, toxic, unfavorable, unfortunate, unlucky, unpromising, unpropitious, untoward, venenate, veneniferous, venenous, venomous, vicious, virulent, wicked,