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From craze +‎ -y.

[1]: Earliest meaning (1570s) was that of "diseased, sickly". Meaning "full of cracks or flaws" is from the 1580s; that of "of unsound mind, or behaving as so" is from the 1610s. Jazz slang sense "cool, exciting" attested by 1927. To drive (someone) crazy is attested by 1873. Phrase crazy like a fox recorded from 1935. Crazy Horse, Teton Lakota (Siouan) war leader (d. 1877) translates thašuka witko, literally "his horse is crazy".



crazy (comparative crazier, superlative craziest)

  1. Insane; lunatic; demented.
    • 1663, Samuel Butler, Hudibras
      Over moist and crazy brains.
    • 1913, Joseph C. Lincoln, chapter 5, in Mr. Pratt's Patients:
      Of all the queer collections of humans outside of a crazy asylum, it seemed to me this sanitarium was the cup winner. […] When you're well enough off so's you don't have to fret about anything but your heft or your diseases you begin to get queer, I suppose.
    His ideas were both frightening and crazy.
  2. Out of control.
    When she gets on the motorcycle she goes crazy.
  3. Overly excited or enthusiastic.
    • R. B. Kimball
      The girls were crazy to be introduced to him.
    He went crazy when he won.
  4. In love; experiencing romantic feelings.
    Why is she so crazy about him?
  5. (informal) Unexpected; surprising.
    The game had a crazy ending.
  6. Characterized by weakness or feebleness; decrepit; broken; falling to decay; shaky; unsafe.
    • Macaulay
      Piles of mean and crazy houses.
    • Addison
      One of great riches, but a crazy constitution.
    • Jeffrey
      They [] got a crazy boat to carry them to the island.
    • 1859, Charles Dickens, A Tale of Two Cities
      Casement windows opened, crazy doors were unbarred, and people came forth shivering—chilled, as yet, by the new sweet air.


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Derived termsEdit


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crazy (comparative more crazy, superlative most crazy)

  1. (slang) Very, extremely.
    That trick was crazy good.



crazy (countable and uncountable, plural crazies)

  1. An insane or eccentric person; a crackpot.
  2. (slang, uncountable) Eccentric behaviour; lunacy.
    • 2013, Douglas Schwartz, Checkered Scissors, page 211:
      Then again, her whole evening was full of crazy, and she didn't know what else to do.



See alsoEdit