catastrophic
adjective /ˌkætəˈstrɒfɪk/
/ˌkætəˈstrɑːfɪk/
- (of a natural event) causing many people to suffer synonym disastrous
- a catastrophic earthquake/flood/wildfire
- causing a lot of problems for people synonym disastrous
- a catastrophic failure/collapse/defeat
- (US English) a catastrophic illness (= one that costs a very large amount to treat)