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malfeasance

American  
[mal-fee-zuhns] / mælˈfi zəns /

noun

Law.
  1. the performance of an act that is legally unjustified, harmful, or contrary to law, especially by a public official or a person in a position of public trust.


malfeasance British  
/ mælˈfiːzəns /

noun

  1. law the doing of a wrongful or illegal act, esp by a public official Compare misfeasance nonfeasance

"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


Etymology

Origin of malfeasance

First recorded in 1660–70; earlier malefeasance. See male-, feasance


Compare meaning

How does malfeasance compare to similar and commonly confused words? Explore the most common comparisons:


Explanation

Whenever you see the prefix "mal-," you know it's not good. Malfeasance is bad behavior, especially from officials or people who should know better. If nothing else, the mal- in malfeasance will alert you to the fact that something bad is going on. If you know French, fease-, faise- will ring a bell, as it often means "to do." You can probably then infer that malfeasance means "to do bad." Today, it's usually a bad deed done by an official or an organization. You wouldn't accuse a dog who peed on the carpet of malfeasance, but you would accuse a mayor who took a bribe of malfeasance.

Keep Reading on Vocabulary.com

Vocabulary lists containing malfeasance

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:

The trust may specify that all the beneficiaries have to agree to any changes, or that a panel has to concur that certain conditions are met, or else a court may have to find malfeasance.

From MarketWatch ● Sep. 28, 2026

There’s no evidence of malfeasance by the company or others, and Astrotech didn’t respond to a request for comment.

From The Wall Street Journal ● Sep. 25, 2026

Yet her latest documentary, debuting on Netflix Wednesday, is “Freefall: A Reckoning for Boeing,” which portrays the airplane maker’s continuing malfeasance as not just greedy but malevolent.

From Los Angeles Times ● Aug. 19, 2026

Readers weigh in on GLP-1 drugs, the Harold Alfond Foundation, saving for retirement, and congressional malfeasance.

From Barron's ● Aug. 8, 2026

“This malfeasance must be stopped” was what the unassuming janitor Alfred T. Slipper always said before he was transformed into the amazing Incandesto and became a towering, crime-fighting pillar of light.

From "Flora & Ulysses: The Illuminated Adventures" by Kate DiCamillo

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