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: causing or tending to cause ruin
ruinously
adverb
ruinousness
noun
Examples of ruinous in a Sentence
The house has fallen into a ruinous state.
a ruinous miscalculation of the financial markets left them bankrupt
Recent Examples on the Web
For typical investors, such high leverage can be ruinous.
—
Shahar Ziv, Forbes, 3 Mar. 2025
Scandals that might otherwise have been ruinous—the Access Hollywood tape, for example—were spun as baseless attacks from enemies.
—Charlie Warzel, The Atlantic, 28 Feb. 2025
This is just the beginning of what may become the most ruinous four years in U.S. climate action and conservation history.
—Ryan Gellert, TIME, 25 Feb. 2025
And his high fly ball rate, which tended to be ruinous at Fenway Park, will likely play better at Petco Park.
—Kevin Acee, San Diego Union-Tribune, 13 Feb. 2025
See All Example Sentences for ruinous
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Shahar Ziv, Forbes, 3 Mar. 2025
Scandals that might otherwise have been ruinous—the Access Hollywood tape, for example—were spun as baseless attacks from enemies.
—Charlie Warzel, The Atlantic, 28 Feb. 2025
This is just the beginning of what may become the most ruinous four years in U.S. climate action and conservation history.
—Ryan Gellert, TIME, 25 Feb. 2025
And his high fly ball rate, which tended to be ruinous at Fenway Park, will likely play better at Petco Park.
—Kevin Acee, San Diego Union-Tribune, 13 Feb. 2025
See All Example Sentences for ruinous
Cite this Entry
“Ruinous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ruinous. Accessed 12 Mar. 2025.
Copy CitationKids Definition
ruinous
adjective
ru·in·ous
ˈrü-ə-nəs 
: causing or tending to cause ruin : destructive
ruinously
adverb
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