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.
Nights To Remember A lot of the magic of the Copa Libertadores comes in the madness of the group stages. Joseph O'Sullivan, Forbes.com, 1 Apr. 2025 The madness continues today with South Carolina playing Duke and UCLA taking on LSU. Andrew Torgan, CNN Money, 30 Mar. 2025 By the time Dorian makes his final descent into madness, there is no real acting to be done anyway. Jesse Green, New York Times, 28 Mar. 2025 The scene only lasts about 20 seconds, but captures the madness Poheler and Jones describe, especially in a shot of Offerman bucking Poehler around as if by a bull. Ryan Coleman, EW.com, 26 Mar. 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 22 Apr. 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!