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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.

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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.

“Elections should be free from fraud or any other malfeasance that subverts the will of the people,” she added.

From Salon • Mar. 3, 2026

Stephan said her office is continuing to investigate suspected malfeasance of county funds and encourages employees to report concerns.

From Los Angeles Times • Feb. 19, 2026

In the world of family inheritance, such financial malfeasance is not unheard of.

From MarketWatch • Feb. 2, 2026

The Federal Trade Commission Act defines “cause” as “inefficiency, neglect of duty, or malfeasance in office.”

From The Wall Street Journal • Jan. 20, 2026

Well, perfection was subjective—Rowan certainly wouldn’t call the man a perfect scythe—but there was nothing in Goddard’s repertoire of malfeasance that would suggest he would murder Faraday.

From "Scythe" by Neal Shusterman

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