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mad
1[ mad ]
adjective
- mentally disturbed; deranged; insane; demented.
Synonyms: , , ,
- enraged; greatly provoked or irritated; angry.
Synonyms: , ,
- (of animals)
- abnormally furious; ferocious:
a mad bull.
- affected with rabies; rabid:
a mad dog.
- extremely foolish or unwise; imprudent; irrational:
a mad scheme to invade France.
Synonyms: , , ,
Antonyms: , , ,
- wildly excited or confused; frantic:
mad haste.
Synonyms:
- overcome by desire, eagerness, enthusiasm, etc.; excessively or uncontrollably fond; infatuated:
He's mad about the opera.
- wildly lively and merry; enjoyably hilarious:
to have a mad time at the Mardi Gras.
- (of wind, storms, etc.) furious in violence:
A mad gale swept across the channel.
- Slang. much or many:
Mad props for getting this organization off the ground.
adverb
- Slang. very; extremely:
It's mad hot in this car.
verb (used with object)
- Archaic. to make mad.
verb (used without object)
- Archaic. to be, become, or act mad.
MAD
2[ mad ]
mad.
3abbreviation for
- madam.
mad
1/ æ /
adjective
- mentally deranged; insane
- senseless; foolish
a mad idea
- informal.often foll by at angry; resentful
- foll byabout, on, or over; often postpositive wildly enthusiastic (about) or fond (of)
mad about football
football-mad
- extremely excited or confused; frantic
a mad rush
- temporarily overpowered by violent reactions, emotions, etc
mad with grief
- of animals
- unusually ferocious
a mad buffalo
- afflicted with rabies
- like mad informal.with great energy, enthusiasm, or haste; wildly
- mad as a hattercrazily eccentric
verb
- archaic.to make or become mad; act or cause to act as if mad
MAD
2/ æ /
acronym for
- mutual assured destruction: a theory of nuclear deterrence whereby each side in a conflict has the capacity to destroy the other in retaliation for a nuclear attack
Usage Note
Derived Forms
- ˈ徱, adjective
Other 51Թ Forms
- half-mad adjective
- -· adverb
- -·Ա noun
- ܲ·- adjective
- ܲ·-·ly adverb
- ܲ· adjective
- ܲ··ded adjective
51Թ History and Origins
Origin of mad1
51Թ History and Origins
Origin of mad1
Idioms and Phrases
- have a mad on, Informal. to be angry for a period of time; be in a bad mood:
The last time he had a mad on, it lasted for days.
- like mad, Informal. with great haste, impulsiveness, energy, or enthusiasm:
She ran like mad to catch the bus.
- mad as a hatter, completely insane.
More idioms and phrases containing mad
- crazy (mad) about
- drive someone crazy (mad)
- hopping mad
- like crazy (mad)
- stark raving mad
Synonym Study
Example Sentences
The Tories - who have joined Reform UK in opposing net zero emissions by 2050 - urged Labour to end the "mad dash" to this goal - but Downing Street said it would not be changing course.
I heard one of them had to shut down an eagle cam because they were mad at the park service, because they weren’t intervening.
The famous conversation with Victor Valdes, in which Valdes thought his manager had gone mad for asking him to pass to centre-backs who didn't want the ball, is now part of football folklore.
Yeah, he was mad, in a rage that turned his face beet red.
“This all could be alcoholic made-up stories. But in prison she wasn’t drinking. It was very consistent, and it never changed…. She was very mad that she got caught. She hated to lose.”
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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.
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