Merely negative; not helpful
Extremely bad; terrible:
Causing or capable of causing death.
Bringing or tending to bring ruin; very destructive or harmful; disastrous
Find another word for cataclysmal. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for cataclysmal, like: calamitous, cataclysmic, catastrophic, destructive, disastrous, fatal, fateful, ruinous and help.