Synonyms of flatlines

flatlines

verb

present tense third-person singular of flatline

as in dies

to stop living

the patient was fading fast, and doctors expected him to flatline before the night was over

Synonyms & Similar Words

• dies
• falls
• perishes
• succumbs
• disappears
• departs
• expires
• exits
• fades
• ends
• goes
• croaks
• drops
• parts
• passes (on)
• passes away
• buys it
• deceases
• checks out
• steps out
• kicks off
• fails
• demises
• snuffs it
• kicks in
• pops off
• pegs out
• conks (out)
• gives up the ghost
• bites the dust
• kicks the bucket
• consumes
• predeceases
• dries up

Antonyms & Near Antonyms

• lives
• breathes
• comes to
• lingers
• exists
• revives
• is
• thrives
• flourishes
• subsists
• prospers

Example Sentences

Recent Examples of flatlines

Leaders become the bottleneck, the team defaults to the law of least effort, and performance flatlines. — Expert Panel®, Forbes.com, 28 May 2026

However, in practice, the drama of this World War II spy saga seldom lives up to the filmmaker’s lofty aesthetic goals, resulting in a tale of torture and human fragility that flatlines long before its central martyr. — Siddhant Adlakha, Variety, 17 May 2026

Take women out of the equation, and middle-class income essentially flatlines for four decades. — Katica Roy, Fortune, 21 Apr. 2026

Every time the plot hits the reset button, the tension flatlines. — Justin Chang, New Yorker, 14 Oct. 2025