FLATLINE Synonyms: 46 Similar and Opposite Words

flatline

verb

ˈflat-ˌlīn

Definition of flatline

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

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 flatline Enrollment is declining across the board in traditional public schools as the national birthrate continues to fall, charter school enrollment remains robust, private school voucher use increases and the number of immigrant students has flatlined. — Austin Horn july 3, Miami Herald, 3 July 2026 Last year, the stock flatlined despite big data center order growth. — Morgan Chittum, CNBC, 1 July 2026 For the past decade, the British economy has flatlined, while its population has become older, sicker, and no more productive. — Sam Knight, New Yorker, 22 June 2026 Specifically, the Xbox Series generation appears to be close to flatlining. — Paul Tassi, Forbes.com, 11 June 2026 See All Example Sentences for flatline

Recent Examples of Synonyms for flatline

Verb

Last month, the family of Christopher Hawley, who died after a ride in 2022, reached a settlement with the park and with ride manufacturer S&S Worldwide Inc, said KTLA.

— Chas Newkey-Burden, TheWeek, 2 Sep. 2026
Knight was wounded but survived the attack, while Shakur was struck multiple times and died six days later at age 25.

— Nancy Dillon, Rolling Stone, 1 Sep. 2026

Definition of die

Verb

The share of mid-cap companies in that has increased to 20% from 14% while that of 100 large-cap companies has fallen from 78% to 72%, the report showed.

— Priyanka Salve, CNBC, 3 Sep. 2026
The company says its reactor’s electrical output falls within the range of a high-performance vehicle drivetrain.

— Aamir Khollam, Interesting Engineering, 2 Sep. 2026

Definition of fall

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flatlets

flatline

flatlined

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“Flatline.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/flatline. Accessed 4 Sep. 2026.

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Synonyms of flatline

verb

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