disastrous

adjective

di·​sas·​trous di-ˈza-strəs How to pronounce disastrous (audio)
 also  -ˈsa-
1
: attended by or causing suffering or disaster : calamitous
a disastrous flood
2
: terrible, horrendous
a disastrous score
disastrously adverb

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.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The 23-year-old came into the league as the consensus top pick in last year’s draft but struggled as a rookie, in a season which saw the Bears fire their head coach Matt Eberflus following a disastrous Thanksgiving Day loss. Ben Morse, CNN Money, 22 Oct. 2025 Both the president and Treasury Secretary Scott Bessent have described that potential scenario as disastrous for the federal government. Kate Nishimura, Sourcing Journal, 21 Oct. 2025 Despite fans calling for Ross to sell the team amid the disastrous 1-6 record, that will not be happening. James Brizuela, MSNBC Newsweek, 21 Oct. 2025 While the Eagles won 28-22, the Vikings didn't go quietly despite Carson Wentz's disastrous start to the game. Chris Bumbaca, USA Today, 20 Oct. 2025 See All Example Sentences for disastrous

Word History

First Known Use

1594, in the meaning defined at sense 1

Time Traveler
The first known use of disastrous was in 1594

Browse Nearby Words

Cite this Entry

“Disastrous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/disastrous. Accessed 23 Oct. 2025.

More from Merriam-Webster on disastrous

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!