madness
Americannoun
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the state of being mad; insanity.
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senseless folly.
It is sheer madness to speak as you do.
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frenzy; rage.
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intense excitement or enthusiasm.
noun
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insanity; lunacy
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extreme anger, excitement, or foolishness
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a nontechnical word for rabies
Other Word Forms
- premadness noun
Etymology
Origin of madness
First recorded in 1350–1400, madness is from the Middle English word madnesse. See mad, -ness
Explanation
Madness is foolish, impulsive behavior. It would be madness to ride on the back of your friend's car, standing on the bumper. A screaming crowd waiting to see their favorite rock star creates an atmosphere of madness — and their enthusiasm itself can be described as madness. You could also say that donating all your money to an animal shelter would be madness, or describe the madness of a busy Thanksgiving Day sale. Madness sometimes takes on its original meaning, "mental instability" or "insanity."
Vocabulary lists containing madness
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.
For drivers accustomed to the splash-and-dash of gasoline, sitting around for a half-hour at a public charger looked like an act of madness.
From The Wall Street Journal • Mar. 28, 2026
Mangan points out that the team and audience need to "build up a rhythm and rapport with the show", adding "it felt refreshing to see an ambition / piece of madness... even being attempted".
From BBC • Mar. 22, 2026
Donning my academic editor title, I imagined myself tasked with the act of tidying, turning teenage madness, drama, beauty into writing that is still dramatic and beautiful—just grammatically correct.
From Slate • Mar. 20, 2026
When he tries to eject her into space, she simply reappears, leaving the crew unsure whether they’re being studied, judged or driven toward madness.
From Los Angeles Times • Mar. 19, 2026
Koffi, and every other child of her generation, had suffered the consequences of that madness.
From "Beasts of Prey" by Ayana Gray
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
