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Synonyms

misfire

American  
[mis-fiuhr, mis-fahyuhr] / mɪsˈfɪər, ˈmɪsˌfaɪər /

verb (used without object)

  • misfires,
    present (3rd person singular)
  • misfired,
    past participle,  past
  • misfiring
    present participle
  1. (of a rifle or gun or of a bullet or shell) to fail to fire or explode.

  2. (of an internal-combustion engine) to fail to ignite properly or when expected.

  3. to fail to achieve the desired result, effect, etc..

    His criticisms completely misfired.


noun

  1. an act or instance of misfiring.

misfire British  
/ ˌmɪsˈfaɪə /

verb

  1. (of a firearm or its projectile) to fail to fire, explode, or ignite as or when expected

  2. (of a motor engine or vehicle, etc) to fail to fire at the appropriate time, often causing a backfire

  3. to fail to operate or occur as intended

"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. the act or an instance of misfiring

"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

Other Word Forms

Inflected Forms

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of misfire

First recorded in 1745–55; mis- 1 + fire

Explanation

When an engine or weapon misfires, it doesn't function or ignite correctly. When a plan misfires, it doesn't work quite the way you imagined it would. The original meaning of misfire is gun-related; when pulling a trigger doesn't result in the gun firing, the gun misfires. Around the turn of the 20th century, the word began to be used for combustion engines that couldn't get started because their fuel wouldn't ignite. Figuratively, misfire is good for describing ideas that don't ignite: "I'm afraid my plan to talk my parents into taking us to Disney World may misfire in the end."

Keep Reading on Vocabulary.com

Vocabulary lists containing misfire

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.

See Examples For:

For empathy not to misfire in the policy sphere, he contends, we need a “cultural theory of mind,” where “one culture puts itself in the mind of another culture.”

From The Wall Street Journal Jul. 10, 2026

And yes, he did have this particular misfire that first year.

From Salon Jul. 5, 2026

In some cases the monitors that measure sewage spills can misfire but if the regulator does find these incidents occurred it will take enforcement action, it said.

From BBC Mar. 26, 2026

There is no other known evidence to support the misfire claim.

From The Wall Street Journal Mar. 6, 2026

Anyone who knows anything about firearms will tell you that a 9mm handgun cannot misfire in the way that gun did.

From "Born a Crime: Stories from a South African Childhood" by Trevor Noah

Even if Pangram misfires on a given op-ed, the study’s broader pattern—that A.I. use is showing up across major newspaper opinion pages, his own included—is impossible to argue with.

From Slate Apr. 17, 2026

There is also the risk of misfires by missile defense crews.

From The Wall Street Journal Apr. 8, 2026

Intel has had strategic misfires for decades, Meeks said, and government support won’t be enough to save it.

From Barron's Mar. 25, 2026

For each of those successes, there are several messy misfires: The wan camp of “The Politician.”

From Salon Feb. 12, 2026

“Don’t be so sure—and don’t be so hard on yourself, kid. The transporter misfires now and again, but Ma don’t make mistakes. Could be this is all part of her plan.”

From "Dragons in a Bag" by Zetta Elliott

Early on, a photograph of a U-shaped smoke trail circulated on social media along with the now-debunked claim that an Iranian missile misfired and hit the school.

From The Wall Street Journal Mar. 6, 2026

And having misfired of late, polls suggest that Japan's first woman Prime Minister Sanae Takaichi might manage to bring back the glory days with a thumping election win on Sunday.

From Barron's Feb. 6, 2026

Cohen says that progressives have misfired in their decision to challenge him.

From Salon Oct. 14, 2025

With one out in the third, he misfired on a first-pitch cutter to Marte, leaving it down the middle for a home run that was clobbered to the left-field pavilion.

From Los Angeles Times Aug. 27, 2025

That bomb has misfired, or I'm a Prussian.

From Submarine U93 by Charles Gilson

Once more, Gotham’s NBA concern had come out sleepy and misfiring in a finals game.

From The Wall Street Journal Jun. 11, 2026

It finds the misfiring heart tissue and zaps the electrical nodes causing an irregular heartbeat.

From Barron's Jan. 16, 2026

Vance has been repeatedly ratioed on X ever since, a small but telling sign that the usual outrage machine is misfiring.

From Salon Jan. 14, 2026

Snell’s outing was a grind from the start, with Rushing misfiring to first base for an error in the first inning and Betts reacting slowly to a ground ball at shortstop to extend the second.

From Los Angeles Times Sep. 4, 2025

And then, nine years later, Maria Teresa, his final desperate attempt at a boy misfiring.

From "In the Time of the Butterflies" by Julia Alvarez

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