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Synonyms

malfunction

American  
[mal-fuhngk-shuhn] / mælˈfʌŋk ʃən /

noun

malfunctions plural
  1. failure to function properly.

    a malfunction of the liver; the malfunction of a rocket.


verb (used without object)

malfunctions, present (3rd person singular) malfunctioned, past participle, past malfunctioning present participle
  1. to fail to function properly.

malfunction British  
/ mælˈfʌŋkʃən /

verb

  1. (intr) to function imperfectly or irregularly or fail to function

"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. failure to function or defective functioning

"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

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Inflected Forms

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Conjugated Forms

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Etymology

Origin of malfunction

First recorded in 1925–30; mal- + function

Explanation

To malfunction is to fail to work properly. If your toaster spits out a charred, smoky mess no matter what setting it’s on, your toaster is definitely malfunctioning. When something functions, it works. Adding the prefix -mal (meaning "bad") to function indicates bad or unsuccessful functioning. When a computer malfunctions, you could lose your data. A malfunctioning car could cause an accident or leave you stranded. This word is typically used in reference to technology, tools, and gadgets. However, if you make a stupid mistake, you might joke that your brain has malfunctioned.

Keep Reading on Vocabulary.com

Vocabulary lists containing malfunction

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.

This seems to have been the informants’ main function in recent decades.

From The Wall Street Journal • Apr. 30, 2026

SNAP's main function is preventing the worst effects of hunger and food insecurity for the more than 41 million people relying on it.

From Salon • Jan. 27, 2025

She imagined Gosling’s character as “almost like an accessory” where his main function is to just be there and match her look.

From Los Angeles Times • Feb. 20, 2024

These proteins do not require iron and one specific group of them pumps protons through membranes, which enables synthesis of ATP, which is a main function of photosynthesis in all photosynthetic organisms.

From Science Daily • Oct. 16, 2023

Their main function is to prevent the town's children from going through the opening, into the meadow and beyond.

From "Stardust" by Neil Gaiman

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