1. in the sense of catastrophe
- calamity
- catastrophe
- tragedy
- cataclysm
- holocaust
- act of God
- mishap
- accident
- mischance
- misadventure
- reversal
- setback
- contretemps
- reverse of fortune
- problem
- stroke of ill luck
- heavy blow
- difficulty
- buffet
- shock
- trouble
- adversity
- ruin
- misfortune
- tribulation
- ruination
- distress
- woe
- bale
- casualty
- mishanter
2. in the sense of failure
- fiasco
- failure
- mess
- catastrophe
- damp squib
- debacle
- dud
- flop
- dead loss
- washout
- non-starter
- dead duck
- fail
- no-hoper
- car crash
Example Sentences of Disaster
1. The hurricane caused widespread disaster yesterday.
2. They prepared for a potential disaster.
3. The earthquake was a major disaster.
4. Planning helps prevent future disaster situations.