1 infidelities | Definition of infidelities

infidelity

noun
in·​fi·​del·​i·​ty | \ ˌin-fə-ˈde-lə-tē How to pronounce infidelity (audio) , -(ˌ)fī-\
plural infidelities

Definition of infidelity

1a : the act or fact of having a romantic or sexual relationship with someone other than one's husband, wife, or partner
b : unfaithfulness to a moral obligation : disloyalty
2 : lack of belief in a religion

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Examples of infidelity in a Sentence

She was convinced that her husband was guilty of infidelity. He has admitted to a number of marital infidelities.

Recent Examples on the Web

Was the governor right in exposing his legislator friend's alleged infidelity so publicly? Farai Sevenzo And Kagweni Micheni, CNN, "He revealed a lawmaker's affair at his funeral. Now he's set up a hotline to out deadbeat politician dads," 19 Aug. 2019 Instead, Why Women Kill comes off as an ungainly fantasy of women's emotional lives, where the threat of infidelity could be the only fuel of marital unhappiness. Robyn Bahr, The Hollywood Reporter, "'Why Women Kill': TV Review," 15 Aug. 2019 David Lloyd George, a Liberal prime minister whose time in office combined huge constitutional changes, political chicanery and enthusiastic infidelity, also fits. The Economist, "Boris Johnson is looking like Theresa May 2.0," 8 Aug. 2019 Her infidelity claims also surfaced in A Little Me. Kayla Keegan, Good Housekeeping, "Matt Roloff Fires Back at a 'LPBW' Fan Who Says He Was Dating Caryn While Married to Amy," 19 July 2019 Is garden-variety infidelity or assholism being mixed up with abuse of power in some cases? Lidija Haas, The New Republic, "Notes on Cancel Culture," 1 July 2019 Khloé Kardashian will turn 35 on Thursday, leaving behind a painful year filled with drama, scandal and infidelity. Rachel Desantis, PEOPLE.com, "Khloé Kardashian Turns 35: Looking Back at Her Challenging Year, from Motherhood to Heartbreak," 27 June 2019 After all, being a hero of the anti-Trump resistance, especially when Amazon lately has been vilified from the left, is better than being the chump starring in a garden-variety case of rich-guy infidelity. Holman W. Jenkins, WSJ, "Suddenly, Bezos Is Media’s Hero," 12 Feb. 2019 However, Cardi B addressed this video and other rumors surrounding her husband's infidelity in a March interview with Cosmopolitan and a month later announced her pregnancy. Gabi Thorne, Allure, "Cardi B Tattooed Offset's Name on Her Leg and It Looks Like It Hurt," 23 July 2019

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

15th century, in the meaning defined at sense 2

History and Etymology for infidelity

Middle English infidelite, borrowed from Middle French infidelité, borrowed from Latin infidēlitāt-, infidēlitās "faithlessness, inconstancy," from infidēlis "unfaithful, disloyal" + -itāt-, -itās -ity — more at infidel entry 2

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