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
Jurors, who range in age from 24 to 74, were questioned during the weeklong voir dire process about Mike Myers, beliefs regarding infidelity and their taste in music as the defense and prosecution narrowed down the potential pool to 12.
—
Tracy Wright, FOXNews.com, 13 May 2025
In contrast, anxious partners — who tend to fear abandonment — rarely cheat while dating, but in marriages, their need for connection can make infidelity more likely.
—Mark Travers, Forbes.com, 1 May 2025
This case is about love, jealousy, infidelity and money.
—Jenna Sundel
joshua Rhett Miller, MSNBC Newsweek, 15 May 2025
Season 2 finds the couple becoming the talk of the town after a cast trip to Vanderpump Villa leaves Demi facing accusations of infidelity.
—Angela Andaloro, People.com, 15 May 2025
See All Example Sentences for infidelity
Tracy Wright, FOXNews.com, 13 May 2025
In contrast, anxious partners — who tend to fear abandonment — rarely cheat while dating, but in marriages, their need for connection can make infidelity more likely.
—Mark Travers, Forbes.com, 1 May 2025
This case is about love, jealousy, infidelity and money.
—Jenna Sundel
joshua Rhett Miller, MSNBC Newsweek, 15 May 2025
Season 2 finds the couple becoming the talk of the town after a cast trip to Vanderpump Villa leaves Demi facing accusations of infidelity.
—Angela Andaloro, People.com, 15 May 2025
See All Example Sentences for infidelity
Recent Examples of Synonyms for infidelity
Noun
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In the court of public opinion, any credible allegation of drug use, adultery or moral misstep is typically perceived as career-ending.—
Patrick Brzeski,
HollywoodReporter,
21 May 2025
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Mlotek’s title presumably comes from no-fault divorce laws, which did away with the idea that divorce required proof of wrongdoing, such as abuse or adultery.—
Hannah Jocelyn,
New Yorker,
26 Mar. 2025
Noun
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One professor challenged that reasoning, which Casas repeated during the panel on Wednesday, telling the police chief that for students with fragile immigration statuses, being detained by university police would feel like a betrayal.—
Garrett Shanley,
Miami Herald,
23 May 2025
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In the aftermath, Mahnaz will be forced to confront betrayal and loss, and to embark on a quest for justice.—
Baz Bamigboye,
Deadline,
22 May 2025
Noun
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Baldwin also faced an involuntary manslaughter charge in connection with Hutchins’ death, but a judge dismissed the case in the middle of trial last summer due to prosecutorial misconduct and evidence suppression.—
Jessica Schladebeck,
New York Daily News,
24 May 2025
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When an instance of misconduct is alleged and the investigation begins to make some headway, the police or corrections officer might quit or retire.—
Kevin Rennie,
Hartford Courant,
24 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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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 2 Jun. 2025.
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