as in died
to stop living
the patient was fading fast, and doctors expected him to flatline before the night was over
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Recent Examples of flatlined
Home sales flatlined amid unaffordable conditions after rising demand collided with tepid supply growth, pushing up home prices.
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Jason Ma, Fortune, 14 Dec. 2025
Because of high home prices, historically elevated mortgage rates and other higher housing costs, including property taxes and homeowner insurance premiums, Gen Z and millennial homeownership rates flatlined last year.
—Giulia Carbonaro, MSNBC Newsweek, 3 Dec. 2025
But after growth soared from late 2023 through last year, the business has flatlined, with some analysts saying that Dell has taken market share.
—Ari Levy, CNBC, 4 Nov. 2025
Chase Brown had completely flatlined as a fantasy commodity before Flacco’s arrival, and Tee Higgins was approaching a similar status.
—Andy Behrens, New York Times, 17 Oct. 2025
After administering chest compressions — during which Bennett flatlined — a doctor asked if the couple would be willing to put their son on life support.
—Greta Bjornson, PEOPLE, 21 Sep. 2025
Multiple nations now have annihilation-level nuclear assets, and yet, even as the threat continues escalating, public concern has flatlined.
—David Rooney, HollywoodReporter, 2 Sep. 2025
Our life expectancy has flatlined.
—Angela Haupt, Time, 17 Aug. 2025
Price growth has continued to pick up, employment growth in manufacturing has flatlined and other non-manufacturing sectors are feeling the pinch.
—Elizabeth Robinson, NBC news, 7 Aug. 2025
Recent Examples of Synonyms for flatlined
Verb
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One of those rescued, a female landfill worker, died while being brought to a hospital, regional police director Brig.—
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Josh's father Jay Cardiello announced his son's death in a social media post and shared that his son died while playing basketball.—
Verb
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The at-bats were brief and uneventful, the opposite of the approach that carried Toronto to this stage and felled Snell in Game 1.—
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That says a lot about the 2025 Red Sox, who were a top offensive team in many metrics, but were also felled by their bats in crucial spots throughout the year and postseason.—
Cite this Entry
“Flatlined.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/flatlined. Accessed 13 Jan. 2026.
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