The meaning of CATACLYSM is flood, deluge. How to use cataclysm in a sentence.

Something that’s cataclysmic is violently destructive. The word often refers to natural disasters, like a cataclysmic earthquake, but cataclysmic can describe other events as well as long as they’re bad …

CATACLYSMIC definition: 1. causing a lot of destruction, or a sudden, violent change: 2. causing a lot of destruction, or…. Learn more.

cataclysmic adjective disastrous, devastating, catastrophic, calamitous Few had expected the change to be as cataclysmic as it was. Collins Thesaurus of the English Language – Complete and Unabridged …

Definition of cataclysmic adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

A cataclysmic event is one that changes a situation or society very greatly, especially in an unpleasant way.

Feb 21, 2026 · Adjective cataclysmic (comparative more cataclysmic, superlative most cataclysmic) Of or pertaining to a cataclysm; causing great destruction or upheaval; catastrophic.