1
as in adultery
lack of faithfulness especially to one's husband or wife
infidelity can lead to divorce
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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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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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Example Sentences
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Recent Examples of infidelity
But the rawest struggle for many is the fallout from marital infidelity.
—
Dominique Soguel, Christian Science Monitor, 21 Apr. 2025
After discovering her boyfriend’s infidelity, Jo spirals and ends up involuntarily committed to a psychiatric facility.
—Jill Goldsmith, Deadline, 17 Apr. 2025
Research from the Journal of Family Psychology reveals that our attachment styles may also have a role to play in our likelihood of infidelity.
—Mark Travers, Forbes.com, 1 May 2025
In August 2024, the Bronx rapper filed for divorce amid recurring rumors of infidelity.
—Demicia Inman, VIBE.com, 16 Apr. 2025
See All Example Sentences for infidelity
Dominique Soguel, Christian Science Monitor, 21 Apr. 2025
After discovering her boyfriend’s infidelity, Jo spirals and ends up involuntarily committed to a psychiatric facility.
—Jill Goldsmith, Deadline, 17 Apr. 2025
Research from the Journal of Family Psychology reveals that our attachment styles may also have a role to play in our likelihood of infidelity.
—Mark Travers, Forbes.com, 1 May 2025
In August 2024, the Bronx rapper filed for divorce amid recurring rumors of infidelity.
—Demicia Inman, VIBE.com, 16 Apr. 2025
See All Example Sentences for infidelity
Recent Examples of Synonyms for infidelity
Noun
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The synopsis reads: 1972: The Ecclesiastical Court of Santiago de Compostela convicted Sagrario Fra, a shellfish harvester in Ferrol, for committing adultery.—
Zac Ntim,
Deadline,
31 July 2024
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There’s adultery and cuckoldry and suspicions of adultery and cuckoldry and doubles and all the other good Cronenbergian ideas.—
Bilge Ebiri,
Vulture,
17 Apr. 2025
Noun
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Blasting his policies as a betrayal of the nation’s founding principles, the former vice president warned of a looming constitutional crisis.—
Seema Mehta,
Los Angeles Times,
12 May 2025
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The top Senate Democrat's support for the bill moving forward, in which he was joined by nine other members of the chamber's Democratic Caucus, prevented a government shutdown, but was seen by many in his party as a betrayal.—
Jason Lemon,
MSNBC Newsweek,
10 May 2025
Noun
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The business-as-usual approach dovetails with a year of acts from Brand New to Ryan Adams looking to put a wide range of allegations of misconduct in the rearview mirror by giving diehards a show of talent to talk about instead and little else.—
Craig Jenkins,
Vulture,
13 May 2025
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Substantial misconduct, Murphy said in the filing, can also warrant the disqualification of a prosecutor.—
Grethel Aguila,
Miami Herald,
12 May 2025
Noun
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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
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Sinners is one of the great vampire movies of the modern age, mining the legend of these perpetual outsiders who desperately yearn to belong, but whose silky promises are rooted in treachery.—
Stephanie Zacharek,
Time,
29 Apr. 2025
Noun
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Because this is borderline treason in Dear Leader's world.—
Paul Du Quenoy,
MSNBC Newsweek,
27 Mar. 2025
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Yoon has presidential immunity from most criminal prosecutions but that doesn't cover grave charges like rebellion and treason.—
arkansasonline.com,
arkansasonline.com,
9 Mar. 2025
Cite this Entry
“Infidelity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infidelity. Accessed 24 May. 2025.
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