ma·​ni·​ac | \ ˈmā-nē-ˌak How to pronounce maniac (audio) \

Definition of maniac

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

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Examples of maniac in a Sentence

He's a complete maniac when he's playing football. they should permanently put away the maniac who is responsible for these kidnappings
Recent Examples on the Web The exclamation point betrays her inner exercise maniac, the happy sergeant all too eager to mistake physical sensations for spiritual transformation. Katy Waldman, The New Yorker, 3 May 2021 But a new teaser for the USA and Syfy show Chucky offers a look at what the titular maniac himself is really made of. Clark Collis,, 5 Apr. 2021 For his fast growth in China, Ye earned the nickname kai dian kuang mo, or the store-opening maniac. Yue Wang, Forbes, 2 Mar. 2021 Clearly, Rosalind is a power-hungry maniac who enjoys playing with the fates of others. Olivia Truffaut-wong,, 1 Feb. 2021 Hundreds were seriously injured by the maniac in Las Vegas. Star Tribune, 30 Jan. 2021 Mel Tucker promised to recruit like a maniac and explore every option for players. Chris Solari, Detroit Free Press, 16 Dec. 2020 Some papers attributed the crime to a maniac like Jack the Ripper, while others saw parallels with additional unsolved homicides. Erin Overbey, The New Yorker, 29 Nov. 2020 Meanwhile, Isayama’s erstwhile protagonist is a genocidal maniac radicalized by trauma, and all of his former friends are cooperating to thwart him. Shaan Amin, The New Republic, 16 Nov. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'maniac.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of maniac

circa 1763, in the meaning defined at sense 1

History and Etymology for maniac

Late Latin maniacus maniacal, from Greek maniakos, from mania

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Time Traveler for maniac

Time Traveler

The first known use of maniac was circa 1763

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Statistics for maniac

Last Updated

12 May 2021

Cite this Entry

“Maniac.” Dictionary, Merriam-Webster, Accessed 25 Jun. 2021.

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More Definitions for maniac



English Language Learners Definition of maniac

: someone who is violent and mentally ill
informal : a person who behaves in a very wild way
informal : a person who is extremely enthusiastic about something


ma·​ni·​ac | \ ˈmā-nē-ˌak How to pronounce maniac (audio) \

Kids Definition of maniac

1 : a person who is or behaves as if insane
2 : a person who is extremely enthusiastic about something

More from Merriam-Webster on maniac

Nglish: Translation of maniac for Spanish Speakers

Britannica English: Translation of maniac for Arabic Speakers


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