fa·​nat·​i·​cism | \fə-ˈna-tə-ˌsi-zəm \

Definition of fanaticism 

: fanatic outlook or behavior

Examples of fanaticism in a Sentence

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Vajpayee's supporters saw him as a skilled politician who managed to avoid fanaticism, a man who refused to see the world in black and white. Ashok Sharma, Fox News, "Former Indian PM Vajpayee dies after illness at age 93," 16 Aug. 2018 Religious fanaticism is on the wane, and corrupt power networks among both the clergy and institutions like the Revolutionary Guard have discredited the regime in the eyes of the people. Walter Russell Mead, WSJ, "Trump’s Iran Gambit," 8 June 2018 He could never be corrupted by anything except his own fanaticism. Jonathan Chait, Daily Intelligencer, "Glenn Greenwald Tells Russians Liberals Are Blaming Them As Excuse for Clinton," 9 July 2018 The novel is interested in exploring where faith shades into fanaticism and where religion shades into a cult., "R.O. Kwon's The Incendiaries Gives A Glimpse Into A Cult's Magnetic Pull," 6 July 2018 Soon-To-Be Sold Out Sneaker Before Anyone Else Can the Trek deliver the same levels of fanaticism as the French brand's Triple S sneaker? Tyler Watamanuk, GQ, "Pick Up Balenciaga’s Soon-To-Be Sold Out Sneaker Before Anyone Else," 29 June 2018 The set looks tailor-made for a Hellcab update; what Bennett Fisher presents instead is a tortuous lecture about fanaticism and class and race relations in America. Dmitry Samarov, Chicago Reader, "Damascus attempts to tackle faith, politics, and race without a road map," 1 June 2018 Almost all of that regulation has now gone out the window, thanks to Scott Pruitt’s diligent fanaticism. Andrew Sullivan, Daily Intelligencer, "Obama’s Legacy Has Already Been Destroyed," 18 May 2018 This tendency explains the fanaticism with which divinity-school dropouts Al Gore and Jerry Brown have warned of climate change. Steven F. Hayward, WSJ, "Climate Change Has Run Its Course," 4 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fanaticism.' 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 fanaticism

1652, in the meaning defined above

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Last Updated

16 Nov 2018

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Time Traveler for fanaticism

The first known use of fanaticism was in 1652

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fa·​nat·​i·​cism | \fə-ˈnat-ə-ˌsiz-əm \

Medical Definition of fanaticism 

: fanatic outlook or behavior especially as exhibited by excessive enthusiasm, unreasoning zeal, or wild and extravagant notions on some subject

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