Of or pertaining to a catastrophe. / Disastrous; ruinous. / From which recovery is impossible.

In a catastrophic manner, or to a catastrophic extent; disastrously.

catastrophic

(geology) The doctrine that sudden catastrophes, rather than continuous change, cause the main features of the Earth's crust.

plural of catastrophization

The act or process of catastrophizing.

Third-person singular simple present indicative form of catastrophize

(rare) Catastrophic.

Any large and disastrous event of great significance. / (insurance) A disaster beyond expectations. / (narratology) The dramatic event that initiates the resolution of the plot; the dénouement.

To regard a bad situation as if it were disastrous or catastrophic. / (obsolete) To end a comedy.