di·​sas·​trous | \di-ˈzas-trəs also -ˈsas- \

Definition of disastrous 

1 : attended by or causing suffering or disaster : calamitous a disastrous flood

2 : terrible, horrendous a disastrous score

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Other Words from disastrous

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.
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Recent Examples on the Web

Justin Sullivan/Getty Images Thousands of Californians have evacuated their homes in the wake of disastrous wildfires over the past few days, and five have been killed. Julia Alexander, The Verge, "YouTube creators like Shane Dawson, Jake Paul are among SoCal wildfire evacuations," 9 Nov. 2018 Will her bosses forgive her for that disastrous Mexico excursion? Megan Stein, Country Living, "'NCIS: Los Angeles' Ignites Panic Over Hetty's Mysterious Disappearance," 28 Oct. 2018 Arkham Knight launched in a disastrous state on the PC, but subsequent patches fixed most of its issues on all but the most exotic computer configurations. Brad Chacos, PCWorld, "The $12 Humble WB Games Classics Bundle brings the hits with Batman, Mad Max, and Mordor," 24 Oct. 2018 That’s a business thing, ’cause they’re now in a disastrous mess because of that. Eric Johnson, Recode, "Silicon Valley congressman Ro Khanna explains his ‘internet bill of rights’," 6 Oct. 2018 Her oncologist then proceeded with treatment, giving Yerkey a drug known to have disastrous effects on fertility. Kayla Webley Adler, Marie Claire, "When Your Dreams of Motherhood Are Destroyed," 1 Oct. 2018 Republicans have a bending — but not breaking — point The backlash was swift after Trump’s disastrous press conference with Putin on Monday — and much of it came from the president’s own party. Alex Ward, Vox, "The five main takeaways from Trump’s disastrous Russia week.," 20 July 2018 But there’s no overlooking how disastrous the trade that brought him to Arizona has been – and continues to be -- for the Diamondbacks. Nick Piecoro, azcentral, "Arizona Diamondbacks' Shelby Miller trade still haunting them," 13 July 2018 Offshore oil and gas production also occurs in the region and conservationists worry about the disastrous effects of a spill. Jason Daley, Smithsonian, "Hundreds of Blue Whales Are Permanent Residents Off New Zealand’s Coasts," 18 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'disastrous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of disastrous

1594, in the meaning defined at sense 1

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Last Updated

20 Nov 2018

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Time Traveler for disastrous

The first known use of disastrous was in 1594

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More Definitions for disastrous



English Language Learners Definition of disastrous

: causing great suffering or loss

: very bad or unfortunate


di·​sas·​trous | \diz-ˈas-trəs \

Kids Definition of disastrous

1 : causing great suffering or loss

2 : very bad a disastrous performance

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Comments on disastrous

What made you want to look up disastrous? Please tell us where you read or heard it (including the quote, if possible).


a nest or breeding place

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