51Թ

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View synonyms for

mad

1

[ mad ]

adjective

comparative: madder superlative: maddest
  1. mentally disturbed; deranged; insane; demented.

    Synonyms: , , ,

  2. enraged; greatly provoked or irritated; angry.

    Synonyms: , ,

  3. (of animals)
    1. abnormally furious; ferocious:

      a mad bull.

    2. affected with rabies; rabid:

      a mad dog.

  4. extremely foolish or unwise; imprudent; irrational:

    a mad scheme to invade France.

    Synonyms: , , ,

    Antonyms: , , ,

  5. wildly excited or confused; frantic:

    mad haste.

    Synonyms:

  6. overcome by desire, eagerness, enthusiasm, etc.; excessively or uncontrollably fond; infatuated:

    He's mad about the opera.

  7. wildly lively and merry; enjoyably hilarious:

    to have a mad time at the Mardi Gras.

  8. (of wind, storms, etc.) furious in violence:

    A mad gale swept across the channel.

  9. Slang. much or many:

    Mad props for getting this organization off the ground.



adverb

  1. Slang. very; extremely:

    It's mad hot in this car.

verb (used with object)

madded, madding.
  1. Archaic. to make mad.

verb (used without object)

madded, madding.
  1. Archaic. to be, become, or act mad.

MAD

2

[ mad ]

mad.

3

abbreviation for

  1. madam.

mad

1

/ æ /

adjective

  1. mentally deranged; insane
  2. senseless; foolish

    a mad idea

  3. informal.
    often foll by at angry; resentful
  4. foll byabout, on, or over; often postpositive wildly enthusiastic (about) or fond (of)

    mad about football

    football-mad

  5. extremely excited or confused; frantic

    a mad rush

  6. temporarily overpowered by violent reactions, emotions, etc

    mad with grief

  7. of animals
    1. unusually ferocious

      a mad buffalo

    2. afflicted with rabies
  8. like mad informal.
    with great energy, enthusiasm, or haste; wildly
  9. mad as a hatter
    crazily eccentric
“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

verb

  1. archaic.
    to make or become mad; act or cause to act as if mad
“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

MAD

2

/ æ /

acronym for

  1. 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
“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
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Usage Note

Mad meaning “enraged, angry” has been used since 1400, and this sense is a very common one. Because some teachers and usage critics insist that the only correct meaning of mad is “mentally disturbed, insane,” mad is often replaced by angry in formal contexts: The president is angry at Congress for overriding his veto.
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Derived Forms

  • ˈ徱, adjective
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Other 51Թs From

  • half-mad adjective
  • 󲹱-· adverb
  • 󲹱-·Ա noun
  • ܲ·- adjective
  • ܲ·-·ly adverb
  • ܲ· adjective
  • ܲ··ded adjective
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51Թ History and Origins

Origin of mad1

First recorded before 900; Middle English mad (adjective), madden (intransitive verb, derivative of the adjective); Old English ǣ “made mad,” past participle of ǣan (unrecorded) “to make mad,” akin to “mad, foolish”; cognate with Old Saxon ŧ, Old High German gimeit “fǴDZ”
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51Թ History and Origins

Origin of mad1

Old English ǣed, past participle of ǣan to render insane; related to insane, and to Old High German gimeit silly, crazy, Old Norse meitha to hurt, damage
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Idioms and Phrases

  1. 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.

  2. like mad, Informal. with great haste, impulsiveness, energy, or enthusiasm:

    She ran like mad to catch the bus.

  3. 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
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Synonym Study

Mad, crazy, insane are used to characterize wildly impractical or foolish ideas, actions, etc. Mad suggests senselessness and excess: The scheme of buying the bridge was absolutely mad. In informal usage, crazy suggests recklessness and impracticality: a crazy young couple. Insane is used with some opprobrium to express unsoundness and possible harmfulness: The new traffic system is simply insane.
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Example Sentences

In light of the circumstances, there is reason to be quite mad at those in government who support the total elimination of checks and balances in favor of an aging strongman’s personal judgment.

From

“I was sooo mad at first but it really hasn’t been terrible! Yet,” she said in a message.”

From

In the mad rush to flee the flames, droves of residents had abandoned their cars in an immovable traffic jam on Palisades Drive.

From

“She could be in the video for the mad dog, how you play the mad dog.”

From

“We deal with people who are mad at us all the time, and we have to come back the next day,” he said.

From

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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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