Synonyms and related words :
adverse, annihilative, antithetical, bad, baleful, baneful, black, brutal, calamitous, cataclysmal, cataclysmic, catastrophic, catching, communicable, condemnatory, conflicting, consuming, consumptive, contagious, contradictory, contrary, critical, damaging, dangerous, deadly, death-bringing, deathful, deathly, deleterious, demolishing, demolitionary, depredatory, derogatory, desolating, destroying, detrimental, devastating, dire, disapproving, disastrous, disparaging, doomful, envenomed, fatal, fateful, fell, feral, fratricidal, grievous, harmful, hurtful, infectious, infective, injurious, internecine, killing, lethal, malign, malignant, mephitic, miasmal, miasmatic, miasmic, mortal, negative, nihilist, nihilistic, noxious, opposed, opposing, pernicious, pestiferous, pestilential, poisonous, ravaging, ruining, ruinous, savage, self-destructive, shattering, subversionary, subversive, suicidal, toxic, toxicant, toxiferous, tragic, unfavorable, unwholesome, vandalic, vandalish, vandalistic, venenate, veneniferous, venenous, venomous, virulent, wasteful, wasting, withering, wreckful,