mad
Pronunciation
  • IPA: /ˈmæd/
  • (Southern England, Australia) IPA: /ˈmæːd/
Adjective

mad (comparative madder, superlative maddest)

  1. Insane; crazy, mentally deranged.
    You want to spend $1000 on a pair of shoes? Are you mad?
    He's got this mad idea that he's irresistible to women.
    • c. 1588–1593, William Shakespeare, “The Lamentable Tragedy of Titus Andronicus”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: Printed by Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358 ↗, [Act IV, scene i]:
      I have heard my grandsire say full oft, / Extremity of griefs would make men mad.
  2. (chiefly, US; informal in UK) Angry, annoyed.
    Are you mad at me?
  3. (UK, informal) Bizarre; incredible.
    It's mad that I got that job back a day after being fired.
  4. Wildly confused or excited.
    to be mad with terror, lust, or hatred
    • Bible, Jer. 1. 88
      It is the land of graven images, and they are mad upon their idols.
    • 1787, R. Bage, The Fair Syrian, p.314 ↗
      My brother, quiet as a cat, seems perfectly contented with the internal feelings of his felicity. The Marquis, mad as a kitten, is all in motion to express it, from tongue to heel.
  5. Extremely foolish or unwise; irrational; imprudent.
  6. (colloquial, usually with for or about) Extremely enthusiastic about; crazy about; infatuated with; overcome with desire for.
    Aren't you just mad for that red dress?
  7. (of animals) Abnormally ferocious or furious; or, rabid, affected with rabies.
    a mad dog
  8. (slang, chiefly Northeastern US) Intensifier, signifies an abundance or high quality of a thing; very#Adverb|very, much or many.
    I gotta give you mad props for scoring us those tickets.   Their lead guitarist has mad skills.   There are always mad girls at those parties.
  9. (of a compass needle) Having impaired polarity.
Synonyms Translations Translations Translations Adverb

mad (not comparable)

  1. (slang, New England, New York and UK, dialect) Intensifier; to a large degree; extremely; exceedingly; very; unbelievably.
    He was driving mad slow.
    It's mad hot today.
    He seems mad keen on her.
Synonyms
  • (slang: Intensifier; very) hella; helluv; wicked#Adverb|wicked
Verb

mad (mads, present participle madding; past and past participle madded)

  1. (obsolete, intransitive) To be or become mad. [14th-19th c.]
    • 1852, Washington Irving, Tales from the Alhambra:
      The imperial Elizabetta gazed with surprise at the youthful and unpretending appearance of the little being that had set the world madding.
  2. (now colloquial US) To madden, to anger, to frustrate. [from 15th c.]
    • c. 1595, William Shakespeare, The Tragedy of King Richard the Second, Act V Scene 5:
      This musick mads me, let it sound no more.
    • 1624, Democritus Junior [pseudonym; Robert Burton], The Anatomy of Melancholy: […], 2nd edition, Oxford, Oxfordshire: Printed by John Lichfield and James Short, for Henry Cripps, OCLC 54573970 ↗, partition I, section 2, member 4, subsection iv:
      He that mads others, if he were so humoured, would be as mad himself, as much grieved and tormented […].

MAD
Noun

mad

  1. Initialism of mutually assured destruction
  2. Abbreviation of magnetic anomaly detector.
Proper noun
  1. (programming) Acronym of Michigan algorithm decoder, a programming language, a variant of ALGOL, developed in 1959 at the University of Michigan.



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