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crazy

/ˈkɹeɪzi/
noun
  1. An insane or eccentric person; a crackpot.

  2. Eccentric behaviour; lunacy.

Synonymslunatic, mad man, nut ball, nut case, nutso, psychopath
adjective
  1. Flawed or damaged; unsound, liable to break apart; ramshackle.

  2. Sickly, frail; diseased.

  3. Of unsound mind; insane, demented.

    "His ideas were both frightening and crazy."

Synonymsderanged, loco, nutso, zany, nutso, off the chain
adverb
  1. Very, extremely.

    "That trick was crazy good."

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crazy — meaning, definition & examples | WordNote | WordNote