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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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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Example Sentences
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Recent Examples of infidelity
Chloe’s infidelity and lying about Nicky’s addiction to take Ethan from her years ago is forgiven.
—
Roxana Hadadi, Vulture, 29 May 2025
The post was accompanied by a series of hashtags that included #divorce, #cheating and #infidelity.
—The Athletic Mlb Staff, New York Times, 21 June 2025
The series boasts all the good bone structure of a traditional family drama, with threads of criminality, infidelity, lies, drugs and everything in between woven throughout each episode.
—Aramide Tinubu, Variety, 19 June 2025
Driven by a dramatic arrangement and Christie's operatic falsetto, the single told the story of a young man torn between love and infidelity — and captured a uniquely teenage mix of angst and bravado.
—Dave Quinn, People.com, 19 June 2025
See All Example Sentences for infidelity
Roxana Hadadi, Vulture, 29 May 2025
The post was accompanied by a series of hashtags that included #divorce, #cheating and #infidelity.
—The Athletic Mlb Staff, New York Times, 21 June 2025
The series boasts all the good bone structure of a traditional family drama, with threads of criminality, infidelity, lies, drugs and everything in between woven throughout each episode.
—Aramide Tinubu, Variety, 19 June 2025
Driven by a dramatic arrangement and Christie's operatic falsetto, the single told the story of a young man torn between love and infidelity — and captured a uniquely teenage mix of angst and bravado.
—Dave Quinn, People.com, 19 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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The stories are compelling, often blending sure-fire elements of true crime, psychology (primarily the surrender and loss of self, replaced with a groupthink mentality), deception, betrayal and all manner of drama.—
R. Daniel Foster,
Forbes.com,
1 July 2025
-
This represents a fundamental betrayal of the political realignment that brought working-class voters to the GOP in the first place.—
Nicholas Creel,
MSNBC Newsweek,
30 June 2025
Noun
-
The response made mention of the allegations against Fleming of misconduct.—
Jackson Thompson,
FOXNews.com,
30 June 2025
-
Tucker denied all allegations of misconduct in a statement on X on Jan. 30.—
Anna Lazarus Caplan,
People.com,
27 June 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
-
The South committed treason against the Constitution to protect slavery.—
Zaakir Tameez
June 11,
Literary Hub,
11 June 2025
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Lissu — who survived being shot 16 times in a 2017 assassination attempt — was arrested in April on treason charges.—
Kate Bartlett,
NPR,
7 June 2025
Cite this Entry
“Infidelity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infidelity. Accessed 13 Jul. 2025.
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