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
Geragos molded Combs’s relationships with Ventura and Jane into nasty little afternoon soaps: the passionate meeting, the descent into addictive toxicity, infidelity and violence on both sides, the separation, and, ex post facto, the financial revenge.
—
Doreen St. Félix, New Yorker, 3 July 2025
News of Thompson’s infidelity broke in April 2018 during Kardashian’s final days of her pregnancy with her first baby, True.
—Liza Esquibias, People.com, 2 July 2025
There have also been issues with infidelity, the source alleged.
—Anna Lazarus Caplan, People.com, 30 June 2025
This disregard often pushes them toward infidelity, without thinking of its consequences.
—Mark Travers, Forbes.com, 26 June 2025
See All Example Sentences for infidelity
Doreen St. Félix, New Yorker, 3 July 2025
News of Thompson’s infidelity broke in April 2018 during Kardashian’s final days of her pregnancy with her first baby, True.
—Liza Esquibias, People.com, 2 July 2025
There have also been issues with infidelity, the source alleged.
—Anna Lazarus Caplan, People.com, 30 June 2025
This disregard often pushes them toward infidelity, without thinking of its consequences.
—Mark Travers, Forbes.com, 26 June 2025
See All Example Sentences for infidelity
Recent Examples of Synonyms for infidelity
Noun
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After Swaggart accused Gorman of adultery, Gorman hired a private investigator who followed Swaggart and took the photographs in New Orleans that ignited the scandal.—
Muri Assunção,
New York Daily News,
1 July 2025
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Every look with such an irregular desire is in our Savior’s opinion a virtual adultery. . . .—
Merve Emre,
New Yorker,
16 June 2025
Noun
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In the process, the land is torn apart by fierce rivals, shifting loyalties, and bloody betrayals.—
Matt Grobar,
Deadline,
14 July 2025
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This year’s cast delivered all the twists and betrayals fans expect, and also helped create something unexpected: a new kind of community event.—
Cynthia Salinas Cappellano,
CNN Money,
13 July 2025
Noun
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His last review, which examined misconduct allegations against Russell Brand, only referenced job titles.—
Jake Kanter,
Deadline,
12 July 2025
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Sorrell exited the company in 2018 amid a probe of allegations of misconduct, and Read, who spent much of this time building new digital operations, became the company’s new leader.—
Brian Steinberg,
Variety,
10 July 2025
Noun
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The six-parter, to debut July 14, follows six groups of friends, and six historical cases of murder and treachery among them.—
Etan Vlessing,
HollywoodReporter,
19 June 2025
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But amid the bloodbaths and treacheries, Westeros still penciled in time for a little romance — some more compelling than others (Jon and Ygritte > Jon and Daenerys).—
Tyler Aquilina,
EW.com,
17 Apr. 2025
Noun
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Given the current political climate globally, Heads of State offers a humorous and outlandish perspective on poignant themes like foreign relations, government security breaches, and treason.—
Lynnette Nicholas,
Essence,
3 July 2025
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Denaturalization is rare but possible in cases of treason or crimes.—
Kristina Karisch,
The Hill,
19 June 2025
Cite this Entry
“Infidelity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infidelity. Accessed 20 Jul. 2025.
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