as in to die
to stop living
the patient was fading fast, and doctors expected him to flatline before the night was over
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Example Sentences
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Recent Examples of flatline
The stock was essentially dead money from May through August 2025, flatlined around $20-$22 while everything else moved.
—
Josh Brown,sean Russo, CNBC, 27 Apr. 2026
But while exports are booming, wage growth in the two-track economy has flatlined.
—Semafor Events, semafor.com, 24 Apr. 2026
Fisk was left devastated as doctors rushed in, but were unable to save his wife, who flatlined and died.
—Brendan Morrow, USA Today, 15 Apr. 2026
On the whole, Tesla has performed well financially, although its annual revenue growth has flatlined in recent years.
—Mary Cunningham, CBS News, 1 Apr. 2026
See All Example Sentences for flatline
Josh Brown,sean Russo, CNBC, 27 Apr. 2026
But while exports are booming, wage growth in the two-track economy has flatlined.
—Semafor Events, semafor.com, 24 Apr. 2026
Fisk was left devastated as doctors rushed in, but were unable to save his wife, who flatlined and died.
—Brendan Morrow, USA Today, 15 Apr. 2026
On the whole, Tesla has performed well financially, although its annual revenue growth has flatlined in recent years.
—Mary Cunningham, CBS News, 1 Apr. 2026
See All Example Sentences for flatline
Recent Examples of Synonyms for flatline
Verb
-
Australia's only other fatal shark attack this year occurred in January, when a 12-year-old boy died in a hospital days after he was mauled by a bull shark in Sydney Harbor.—
ABC News,
ABC News,
6 June 2026
-
In January, a 12-year-old also died a week after he was attacked by a shark in Sydney Harbor.—
Brie Stimson,
FOXNews.com,
6 June 2026
Verb
-
For the Fever, who entered the season as championship contenders, the first 10 games have fallen well short of expectations, as scrutiny continues to mount on head coach Stephanie White.—
Jackson Thompson OutKick,
FOXNews.com,
7 June 2026
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Migrant arrivals in the Canary Islands peaked in 2024 at nearly 47,000, but have fallen dramatically, with just over 2,000 people landing there in the first four months of 2026.—
ABC News,
ABC News,
6 June 2026
Cite this Entry
“Flatline.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/flatline. Accessed 7 Jun. 2026.
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