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Synonyms

backfire

American  
[bak-fahyuhr] / ˈbækˌfaɪər /

verb (used without object)

backfired, backfiring
  1. (of an internal-combustion engine) to have a loud, premature explosion in the intake manifold.

  2. to bring a result opposite to that which was planned or expected.

    The plot backfired.

    Synonyms:
    bomb, flop, boomerang, miscarry
  3. to start a fire deliberately in order to check a forest or prairie fire by creating a barren area in advance of it.


noun

  1. (in an internal-combustion engine) premature ignition of fuel in the intake manifold.

  2. an explosion coming out of the breech of a firearm.

  3. a fire started intentionally to check the advance of a forest or prairie fire.

backfire British  
/ ˌbækˈfaɪə /

verb

  1. (of an internal-combustion engine) to emit a loud noise as a result of an explosion in the inlet manifold or exhaust system

  2. (of an endeavour, plan, etc) to have an unwanted effect on its perpetrator

    his plans backfired on him

  3. to start a controlled fire in order to halt an advancing forest or prairie fire by creating a barren area

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

    1. an explosion of unburnt gases in the exhaust system

    2. a premature explosion in a cylinder or inlet manifold

  1. a controlled fire started to create a barren area that will halt an advancing forest or prairie fire

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of backfire

An Americanism dating back to 1775–85; back 2 + fire

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It’s true that forced treatment doesn’t always get the desired outcome, and can backfire if it makes the person more resistant to treatment.

From Los Angeles Times

The Beatles’ attempt to protect their income stream would backfire twice, costing them control of their own songs, but it also helped shape one of today’s most coveted asset classes.

From The Wall Street Journal

Tech companies as well as some digital-rights and children’s groups, however, say age-limit measures are blunt instruments that are likely to backfire.

From The Wall Street Journal

That has the potential to backfire, he and others said.

From Los Angeles Times

It was a high-risk strategy and there were moments in the first 45 minutes when it looked like it might backfire.

From BBC