Synonyms of flatlining

flatlining

verb

present participle of flatline

as in dying

to stop living

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

Synonyms & Similar Words

• dying
• falling
• perishing
• succumbing
• disappearing
• ending
• expiring
• exiting
• fading
• departing
• passing (on)
• going
• checking out
• deceasing
• passing away
• buying it
• croaking
• dropping
• stepping out
• parting
• kicking off
• kicking in
• pegging out
• demising
• popping off
• snuffing it
• failing
• giving up the ghost
• conking (out)
• kicking the bucket
• biting the dust
• consuming
• drying up
• predeceasing

Antonyms & Near Antonyms

• living
• breathing
• reviving
• coming to
• existing
• being
• lingering
• flourishing
• subsisting
• thriving
• prospering

Example Sentences

Recent Examples of flatlining

Specifically, the Xbox Series generation appears to be close to flatlining. — Paul Tassi, Forbes.com, 11 June 2026

Our modern dating culture has completely distorted that distinction and our relationships are flatlining because of it. — Sabrina Romanoff, CNBC, 5 June 2026

Neuromodulation is necessary for keeping the brain’s activity level in a functional range, preventing it from either flatlining or erupting in seizures. — Ingrid Wickelgren, Quanta Magazine, 30 Jan. 2026

The episode ends with Monty flatlining in the hospital as Cami and their daughters cry for him. — Randall Colburn, Entertainment Weekly, 4 Nov. 2025

Despite a global pandemic flatlining the music industry, Hynes contributed to albums by Lorde and Turnstile, crafted film scores for Passing and Master Gardener, and just last year penned some original music for the Broadway play Job. — Mackenzie Cummings-Grady, Billboard, 3 Sep. 2019