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
Despite shooting down any suggestions of infidelity, she’s continued to field the questions and comments, responding politely to the seemingly never-ending queries.
—
Sara Belcher, PEOPLE, 6 Sep. 2025
Prosecutors said Hoshmand slapped her and accused her of infidelity before going outside and killing Jordan.
—Nate Gartrell, Mercury News, 4 Sep. 2025
For many couples, infidelity is a nonnegotiable breach of trust, never to be forgiven.
—Stephanie Zacharek, Time, 4 Sep. 2025
The second season saw the #MomTok group dissipate with Taylor Frankie Paul’s infidelity and the drama with his mistress Jenna.
—Peter White, Deadline, 28 Aug. 2025
See All Example Sentences for infidelity
Sara Belcher, PEOPLE, 6 Sep. 2025
Prosecutors said Hoshmand slapped her and accused her of infidelity before going outside and killing Jordan.
—Nate Gartrell, Mercury News, 4 Sep. 2025
For many couples, infidelity is a nonnegotiable breach of trust, never to be forgiven.
—Stephanie Zacharek, Time, 4 Sep. 2025
The second season saw the #MomTok group dissipate with Taylor Frankie Paul’s infidelity and the drama with his mistress Jenna.
—Peter White, Deadline, 28 Aug. 2025
See All Example Sentences for infidelity
Recent Examples of Synonyms for infidelity
Noun
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In addition, Swazi law has a different definition of adultery for men and for women.—
The Editors,
JSTOR Daily,
15 Aug. 2025
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Certain artistic genres were employed to publicize and critique changes to laws regarding adultery and divorce.—
Smithsonian Magazine,
Smithsonian Magazine,
29 July 2025
Noun
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This final betrayal will be his undoing, as the enraged creature, doomed to live without connection, care, or love, finally snaps and destroys everything Victor holds dear.—
Thomas Page McBee,
Travel + Leisure,
16 Sep. 2025
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Your narrative, with its shifting of points of view among four longtime friends, allows for intimacy and drama as well as betrayals and loss as Desiree, Nakia, Monique and January (with Desiree’s estranged sister Danielle mostly on the sidelines) each tell their stories.—
Jane Ciabattari
September 16,
Literary Hub,
16 Sep. 2025
Noun
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The allegations led to the October 2023 suspensions of Williams, Moore and Pryor after internal investigations into their handling of the county’s Dine-In 2 program found widespread financial misconduct first reported by The Sacramento Bee.—
Darrell Smith,
Sacbee.com,
18 Sep. 2025
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The suspension marks the third time in recent weeks that the archdiocese has publicly addressed allegations of misconduct involving leaders in its community.—
Judy L. Thomas,
Kansas City Star,
18 Sep. 2025
Noun
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When does compromise become treachery or defeat?—
Literary Hub,
Literary Hub,
3 Sep. 2025
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Could Juno be behind this treachery, as payback for David destroying her spy corporation and for changing his oldest daughter into a killer?—
Demetrius Patterson,
HollywoodReporter,
27 Aug. 2025
Noun
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For the most part, lying and cheating do seem to be bad for you.—
Julie Beck,
The Atlantic,
17 Sep. 2025
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When yet another affair is discovered (Kate Upton), all three women team up to plot mutual revenge on their cheating, lying, three-timing SOB.—
Caitlin White,
Variety,
2 Sep. 2025
Noun
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Parliamentary officials met with at least 10 student unions, whose demands included the release of demonstrators and an investigation into Prabowo’s accusation about treason.—
Reuters,
NBC news,
4 Sep. 2025
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The main opposition party, CHADEMA, was disqualified in April and its leader Tundu Lissu remains in custody after he was charged with treason for demanding electoral reforms.—
Preeti Jha,
semafor.com,
29 Aug. 2025
Cite this Entry
“Infidelity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infidelity. Accessed 20 Sep. 2025.
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