madness

noun

mad·​ness ˈmad-nəs How to pronounce madness (audio)
1
: the quality or state of being mad: such as
a
: a state of severe mental illness
not used technically
… fortifications against an inner darkness, the threat of madness that crouched above him throughout his life.Robert F. Moss
b
: behavior or thinking that is very foolish or dangerous : extreme folly
an idea that is pure/sheer madness
d
: intense anger : rage
2
: any of several ailments of animals marked by frenzied behavior
specifically : rabies

Examples of madness in a Sentence

He suffered a series of tragedies that nearly drove him to madness. Her friends told her the idea was pure madness, but she went through with it anyway. It was the height of madness for him to drive at such high speeds!
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The peaceful scene of pandas resting in a meadow is quickly disturbed by Jack Black, Jason Momoa, and Sebastian Hansen hurtling to the ground at full speed with a bucket of video-game accurate water, and from there, all kinds of madness ensues. Billie Melissa, Newsweek, 3 Mar. 2025 And when her brother-in-law, Stanley (Marlon Brando), rapes her, her descent into madness was made all the more vivid and believable by Leigh's precise depiction of vulnerability and instability. Ew Staff, EW.com, 2 Mar. 2025 Only losing one game in the month of madness over the past two national championship seasons, the Huskies started it off on the right foot with a 75-63 win at Providence on Saturday, their second decisive victory in a row. Joe Arruda, Hartford Courant, 1 Mar. 2025 The game action, atmosphere and post-game celebration are part of the madness as teams push towards conference championships and tournament time. Jay Ginsbach, Forbes, 28 Feb. 2025 See All Example Sentences for madness

Word History

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of madness was in the 14th century

Browse Nearby Words

Cite this Entry

“Madness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/madness. Accessed 9 Mar. 2025.

Medical Definition

madness

noun
mad·​ness ˈmad-nəs How to pronounce madness (audio)
1
: a severely disordered state of mind
not used technically
2
: any of several ailments of animals marked by frenzied behavior
specifically : rabies

More from Merriam-Webster on madness

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!