Backfire
Backfire verb - To have the reverse of the desired or expected effect.
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Synonyms for Backfire
Flatline and backfire are semantically related. In some cases you can use "Flatline" instead a verb "Backfire".
Nearby Words: backfired, backfiring
Flatline
Flatline verb - To stop living.
Mutual synonyms
Both words in one sentence
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But the writers still get this wrong enough that the guy who does the Medical Reviews of House has adopted a catch phrase of "You don't shock a flatline." The defibrillators also have a tendency to backfire, particularly if your name is Lawrence Kutner.
Source: Series / House
Cite this Source
Flatline and Backfire. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/backfire/flatline
Backfire & Flatline. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/backfire/flatline>.
Flatline or Backfire. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/backfire/flatline.
Google Ngram Viewer shows how "backfire" and "flatline" have occurred on timeline