Catastrophe vs Cataclysmic - What's the difference?

As a verb catastrophe

is .

of or pertaining to a cataclysm; causing great destruction or upheaval; catastrophic.

(wikipedia catastrophe)

* (now rare) *

(en noun)

Any large and disastrous event of great significance.

(insurance) A disaster beyond expectations

(narratology) The dramatic event that initiates the resolution of the plot in a tragedy.

(mathematics) A type of bifurcation, where a system shifts between two stable states.

*nakba

* catastrophe bond * catastrophe theory

(-)

Of or pertaining to a cataclysm; causing great destruction or upheaval; catastrophic.

It is believed that a cataclysmic impact caused the extinction of the dinosaurs.

* 2005 , , My Women

That’s why to be rejected in love was so cataclysmic : one had been judged and found wanting.