flatline

Fetched 2026-10-26 (cache).

Synonyms: flatling, flat line, flailing, flattie, latrine, plotline, ratline, flatland, layline, fatling, flatting

Antonyms: flatling, flat line, flailing, flattie, latrine, plotline, ratline, flatland, layline, fatling, flatting

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|medicine|cardiology}} An [[asystole]]; the [[absence]] of [[heart]] [[contraction]]s or [[brain]] [[wave]]s.
2. {{lb|en|also|figurative}} An [[unchanging]] [[state]], as [[indicated]] in a [[graph]] of a [[variable]] over time.
3. {{lb|en|fishing}} A [[line]] that is [[run]] low to the [[water]] from the [[rod]] [[tip]], generally off a [[release]] [[clip]] of some [[type]].

Verb

1. {{lb|en|intransitive|medicine|cardiology|of the heart}} To stop [[beating]].
2. {{lb|en|intransitive|medicine|cardiology|by extension}} To [[die]].
3. {{lb|en|transitive|slang}} To [[kill]].
4. {{lb|en|informal|intransitive}} To [[remain]] at the [[same]] [[level]], without [[development]]; or, to [[fall]].
5. {{lb|en|of a graph}} To [[experience]] [[significantly]] [[decreased]] [[rate]]s of [[change]] compared to [[previous]] [[rate]]s of change.
6. {{lb|en|fishing|intransitive}} To [[fish]] [[use|using]] a flatline.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.