From craze +‎ -y.

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"[1].


  • IPA(key): /ˈkɹeɪzi/
  • (file)
  • Rhymes: -eɪzi


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.
    • (Can we date this quote by R. B. Kimball and provide title, author's full name, and other details?)
      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) Very unexpected; wildly surprising.
    The game had a crazy ending.
  6. Characterized by weakness or feebleness; decrepit; broken; falling to decay; shaky; unsafe.
    • (Can we date this quote by Macaulay and provide title, author's full name, and other details?)
      Piles of mean and crazy houses.
    • (Can we date this quote by Addison and provide title, author's full name, and other details?)
      One of great riches, but a crazy constitution.
    • (Can we date this quote by Jeffrey and provide title, author's full name, and other details?)
      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.


Derived termsEdit


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.


crazy (comparative more crazy, superlative most crazy)

  1. (slang) Very, extremely.
    That trick was crazy good.
    • 2002, Gina Riley; Jane Turner, That's Unusual: Scripts from Kath and Kim, Series 2, page 67:
      I'm flat out. It's crazy stupid here, Kim.



crazy (countable and uncountable, plural crazies)

  1. An insane or eccentric person; a crackpot.
    • 2011 Allen Gregory, "Pilot" (season 1, episode 1):
      Allen Gregory DeLongpre: Now drink up, you knuckleheads! Have a blast! It's our night, you crazies! Chloe, where are you?
  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