cataclysmic

• POS: Adjective
• HYPHEN: cat=a=clys=mic

CIDE DICTIONARY

cataclysmic, a. 

 Of or pertaining to a cataclysm.  [1913 Webster]

THESAURUS

cataclysmic

baneful, black, calamitous, cataclysmal, catastrophic, consuming, consumptive, convulsive, deadly, demolishing, demolitionary, depredatory, desolating, destroying, destructive, devastating, dire, disastrous, doomful, fatal, fateful, fratricidal, grievous, herky-jerky, insurrectionary, internecine, jerky, nihilist, nihilistic, orgasmic, paroxysmal, radical, ravaging, revolutional, revolutionary, revulsionary, revulsive, ruining, ruinous, seismic, self-destructive, spasmodic, spastic, subversionary, subversive, suicidal, sweeping, tragic, transilient, upheaving, vandalic, vandalish, vandalistic, wasteful, wasting, withering, wreckful