ruinous

adjective

ˈrü-ə-nəs How to pronounce ruinous (audio)
Definition of ruinousnext
1
as in disastrous
bringing about ruin or misfortune a ruinous miscalculation of the financial markets left them bankrupt

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Antonyms & Near Antonyms
2
as in devastating
causing or tending to cause destruction a ruinous windstorm destroyed the crops

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of ruinous These people are ridiculous; these people are ruinous. — Eugenie Brinkema, ARTnews.com, 14 June 2026 In underwriting the loss can run to many times the premium, so a model that is right 95% of the time but wildly overconfident the rest can still be ruinous if its failures bunch together in the wrong place. — Dara-Abasi Ita, Forbes.com, 12 June 2026 The controversial relationship likely proved ruinous for Gates’ relationship with his now ex wife. — Victor Tangermann, Futurism, 11 June 2026 For a multimillion-dollar data center, that disposal model is potentially ruinous. — IEEE Spectrum, 11 June 2026 See All Example Sentences for ruinous
Recent Examples of Synonyms for ruinous
  1. disastrous
  2. devastating
  3. fatal
  4. destructive
  5. unfortunate
  6. catastrophic
Adjective
  • Boone didn’t get to watch the disastrous half-inning from the dugout, as he was ejected in the top of the sixth.
    — Gary Phillips, New York Daily News, 15 Aug. 2026
  • Despite so many past failures, Washington’s foreign policy debates are frequently still dominated by aging officials who made disastrous choices.
    — Emma Ashford, Foreign Affairs, 12 Aug. 2026
Definition of disastrous
Adjective
  • Our absolute priority right now is providing unwavering support to their families, friends and teammates during this devastating time.
    — CBS News, CBS News, 21 Aug. 2026
  • Our absolute priority right now is providing unwavering support to their families, friends, and teammates during this devastating time.
    — Jack Moore, ABC News, 21 Aug. 2026
Definition of devastating
Adjective
  • The family ran the rescue out of their New Hampshire house until a fatal fire burned it down in 2019.
    — ABC News, ABC News, 18 Aug. 2026
  • The researchers also examined fatal crashes, looking at drivers’ ages, alcohol involvement, the number of people in the car and the model year of cars, as newer cars may have more safety features that prevent distraction.
    — Diana Anos, CNN Money, 17 Aug. 2026
Definition of fatal
Adjective
  • Tropical storm warnings were in effect for the islands of Maui, Molokai, Lanai, Kahoolawe, Oahu, Kauai and Niihau, raising the possibility of destructive flooding and even wildfires kicked up by strong winds on the drier sides of the islands.
    — ABC News, ABC News, 16 Aug. 2026
  • Tropical Storm Lala is moving away from Hawaii after bringing destructive flooding and strong winds over the weekend.
    — Dalia Faheid, CNN Money, 16 Aug. 2026
Definition of destructive
Adjective
  • That understanding for the narrator is one tinged with mourning for the boy who endured but also the suspect boy who was always there, even before all the unfortunate happenings.
    — Literary Hub, Literary Hub, 18 Aug. 2026
  • The first addresses inflammation and irritation (an unfortunate side effect of vitamin C, for some people).
    — Maggie Ryan, Flow Space, 17 Aug. 2026
Definition of unfortunate
Adjective
  • Guthrie responded to the catastrophic damage brought by hurricanes Idalia, Helene and Milton, and to other crises like the Surfside condo collapse.
    — Michael Van Sickler, Miami Herald, 18 Aug. 2026
  • Under American stewardship, catastrophic wars have shattered Lebanon, Libya, Sudan, Syria, and Yemen.
    — MARC LYNCH, Foreign Affairs, 18 Aug. 2026
Definition of catastrophic

Browse Nearby Words

ruining
ruinous
ruins
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Cite this Entry

“Ruinous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ruinous. Accessed 22 Aug. 2026.

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Nglish: Translation of ruinous for Spanish Speakers

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