Simple Definition of disastrous
: causing great suffering or loss
: very bad or unfortunate
Examples of disastrous in a sentence
Half the city was destroyed by a disastrous fire.
The bad weather could have a disastrous effect on the area's tourism industry.
His failure to back up the computer files had disastrous consequences.
The strike was economically disastrous.
First Known Use of disastrous
DISASTROUS Defined for Kids
Definition of disastrous for Students
1 : causing great suffering or loss
2 : very bad <a disastrous performance>
Seen and Heard
What made you want to look up disastrous? Please tell us where you read or heard it (including the quote, if possible).