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maniac

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noun ma·ni·ac \ˈmā-nē-ˌak\

Simple Definition of maniac

  • : someone who is violent and mentally ill

  • : a person who behaves in a very wild way

  • : a person who is extremely enthusiastic about something

Full Definition of maniac

  1. 1 :  madman, lunatic

  2. 2 :  a person characterized by an inordinate or ungovernable enthusiasm for something

Examples of maniac

  1. He's a complete maniac when he's playing football.

  2. <they should permanently put away the maniac who is responsible for these kidnappings>



Origin of maniac

Late Latin maniacus maniacal, from Greek maniakos, from mania


First Known Use: circa 1763



MANIAC Defined for Kids

maniac

play
noun ma·ni·ac \ˈmā-nē-ˌak\

Definition of maniac

  1. 1 :  a person who is or behaves as if insane

  2. 2 :  a person who is extremely enthusiastic about something




Medical Dictionary

maniac

play
noun ma·ni·ac \ˈmā-nē-ˌak\

Medical Definition of maniac

  1. :  an individual affected with or exhibiting insanity





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