as in to die
to stop living
the patient was fading fast, and doctors expected him to flatline before the night was over
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of flatline
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
Once front-line teams stop trusting the data—or can't see how the tools help their day-to-day—the adoption curve flatlines.
—Andy Watts, Forbes.com, 18 Sep. 2025
Renters surge as buyers hesitate While homeowners flatline, the renter population is surging.
—Nick Lichtenberg, Fortune, 5 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
See All Example Sentences for flatline
Greta Bjornson, PEOPLE, 21 Sep. 2025
Once front-line teams stop trusting the data—or can't see how the tools help their day-to-day—the adoption curve flatlines.
—Andy Watts, Forbes.com, 18 Sep. 2025
Renters surge as buyers hesitate While homeowners flatline, the renter population is surging.
—Nick Lichtenberg, Fortune, 5 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
See All Example Sentences for flatline
Recent Examples of Synonyms for flatline
Verb
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In April this year, 11 people — including two children — died when a bus flipped on its side in the southeastern corner of the country.—
Charlotte Phillipp,
PEOPLE,
19 Oct. 2025
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Older people who earn less than $20,000 a year die nine years sooner on average than those who earn $120,000 or more, according to a study by the National Council on Aging (NCOA) and University of Massachusetts Boston's LeadingAge LTSS Center.—
Medora Lee,
USA Today,
18 Oct. 2025
Verb
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On a shotgun snap, a handoff slipped out of Bo Nix’s hands, the quarterback falling on it for a loss of four.—
Luca Evans,
Denver Post,
20 Oct. 2025
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Our 10 favorite Amazon fall fashion staples start at just $10 right now.—
Mia Huelsbeck,
PEOPLE,
19 Oct. 2025
Verb
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To hunt, to hide, or simply to endure where others would perish.—
Kaif Shaikh,
Interesting Engineering,
17 Oct. 2025
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That report blamed OceanGate, with particular culpability placed on OceanGate CEO Stockton Rush, who perished in the disaster.—
Michael Dorgan,
FOXNews.com,
16 Oct. 2025
Cite this Entry
“Flatline.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/flatline. Accessed 20 Oct. 2025.
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