Synonyms and related words :
baneful, black, calamitous, cataclysmal, cataclysmic, consuming, consumptive, deadly, demolishing, demolitionary, depredatory, desolating, destroying, destructive, devastating, dire, disastrous, doomful, fatal, fateful, fratricidal, grievous, insurrectionary, internecine, nihilist, nihilistic, radical, ravaging, revolutional, revolutionary, revulsionary, revulsive, ruining, ruinous, self-destructive, subversionary, subversive, suicidal, sweeping, tragic, transilient, vandalic, vandalish, vandalistic, wasteful, wasting, withering, wreckful