1
as in adultery
lack of faithfulness especially to one's husband or wife
infidelity can lead to divorce
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in betrayal
the act or fact of violating the trust or confidence of another
the one thing that the political boss will not forgive is infidelity
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Antonyms & Near Antonyms
3
as in misconduct
a sexual encounter or relationship between a married person and someone other than their spouse
had known about his wife's infidelities for years
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of infidelity
The former couple joined Cheat to see if their love could outweigh his past infidelity.
—
Caroline Blair, People.com, 8 May 2025
The entrepreneur and wellness coach addressed rumors of infidelity while responding directly to a fan’s accusation on Instagram.
—Amber Corrine, VIBE.com, 23 May 2025
Honey is typically in the business of infidelity, taking cases involving suspicious spouses and their philandering partners.
—Lovia Gyarkye, HollywoodReporter, 23 May 2025
But just as monogamy’s definition has changed and means different things to different people, the same is true for infidelity.
—Myisha Battle, Time, 19 May 2025
See All Example Sentences for infidelity
Caroline Blair, People.com, 8 May 2025
The entrepreneur and wellness coach addressed rumors of infidelity while responding directly to a fan’s accusation on Instagram.
—Amber Corrine, VIBE.com, 23 May 2025
Honey is typically in the business of infidelity, taking cases involving suspicious spouses and their philandering partners.
—Lovia Gyarkye, HollywoodReporter, 23 May 2025
But just as monogamy’s definition has changed and means different things to different people, the same is true for infidelity.
—Myisha Battle, Time, 19 May 2025
See All Example Sentences for infidelity
Recent Examples of Synonyms for infidelity
Noun
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Directed by Jonathan Li and Choy Man-yu, the film stars Louis Koo as a private detective investigating a complex case involving adultery and murder.—
Naman Ramachandran,
Variety,
2 June 2025
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Many scandals arise from the occasion of these activities, and adulteries and other outrageous crimes are committed as a clear offence to God, a very serious danger to the souls of those committing them, and a pernicious example to others.—
The Editors,
JSTOR Daily,
27 Mar. 2025
Noun
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Financial elder abuse victims Financial elder abuse victims suffer affects to their psychological, emotional and physical well-being, such as feelings of betrayal, fear, guilt, depression and anxiety, according to the grand jury report.—
Rosalio Ahumada,
Sacbee.com,
5 June 2025
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There’s a subtle sense that taking pleasure in domesticity might be a betrayal of my values—as if nurturing children, or even enjoying something as benign as baking, plays into oppressive tropes.—
Samantha Mann,
Time,
5 June 2025
Noun
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Because an employee is not eligible for unemployment benefits if the person was fired for misconduct, Wisconsin doesn’t want to have to decide the legitimacy of a firing that was based on matters of religious faith and doctrine.—
Maureen Groppe,
USA Today,
6 June 2025
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Critics have accused deputy cliques of engaging in brawls and other misconduct.—
Connor Sheets,
Los Angeles Times,
6 June 2025
Noun
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That’s the treachery of this world, that’s the trap.—
Lauren Coates,
Variety,
24 May 2025
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Press play below to learn more about Wells’ treachery, and to get a sneak peek at the fugitive interacting with her latest target.—
Matt Webb Mitovich,
TVLine,
7 Apr. 2025
Noun
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Lee’s campaign has asserted that a sitting president cannot be criminally prosecuted, except in cases of treason.—
Jong Eun Lee,
The Conversation,
29 May 2025
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The cost of failure would have been death on the grounds of treason.—
Daniel Twining,
National Review,
22 May 2025
Cite this Entry
“Infidelity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infidelity. Accessed 13 Jun. 2025.
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