catastrophic

 
Pronunciation: /katəˈstrɒfɪk/

adjective

  • involving or causing sudden great damage or suffering: a catastrophic earthquake
  • extremely unfortunate or unsuccessful: catastrophic mismanagement of the economy
  • involving a sudden and large-scale alteration in state: the body undergoes catastrophic collapse towards the state of a black hole
  • relating to geological catastrophism.

Derivatives

catastrophically

Pronunciation: /-ˈstrɒfɪk(ə)li/
adverb