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Synonyms

madman

American  
[mad-man, -muhn] / ˈmædˌmæn, -mən /

noun

plural

madmen
  1. a person who is or behaves as if insane; lunatic; maniac.


madman British  
/ ˈmædmən /

noun

  1. a man who is insane, esp one who behaves violently; lunatic

"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 madman

First recorded in 1300–50, madman is from Middle English madd man. See mad, man

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.

To establish the right note of terror on a fog-strewn set by Arnulfo Maldonado that resembles the private chamber of a writer or madman, Page begins with Lady Macbeth’s chilling incantation.

From Los Angeles Times • Jan. 17, 2026

“I knew the second that I poked my head up from my exile, I was probably going to be met by some madman charging at me with an ax,” Nuzzi said in an interview.

From The Wall Street Journal • Dec. 4, 2025

But heavy metal’s favorite madman leaves us with his reminder that “You Can’t Kill Rock and Roll.”

From Slate • Jul. 25, 2025

His unpredictability is sometimes portrayed by his supporters after the fact as strategic - the so-called "madman" theory of foreign relations.

From BBC • Jun. 16, 2025

Emily clapped both hands over her mouth and completely forgot there had been a madman book collector on the hunt for them.

From "Book Scavenger" by Jennifer Chambliss Bertman