maniac

[ mey-nee-ak ]
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noun
  1. a raving or violently insane person; lunatic.

  2. any intemperate or overly zealous or enthusiastic person: a maniac when it comes to details.

adjective

Origin of maniac

1
First recorded in 1595–1605, maniac is from the Medieval Latin word maniacus of, pertaining to madness. See mania, -ac

Words Nearby maniac

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How to use maniac in a sentence

British Dictionary definitions for maniac

maniac

/ (ˈmeɪnɪˌæk) /


noun
  1. a wild disorderly person

  2. a person who has a great craving or enthusiasm for something: a football maniac

  1. psychiatry obsolete a person afflicted with mania

Origin of maniac

1
C17: from Late Latin maniacus belonging to madness, from Greek

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