1
as in infidelity
lack of faithfulness especially to one's husband or wife
he eventually forgave his wife's unfaithfulness
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 jaw-dropping unfaithfulness of the person she had considered her best friend was deeply hurtful
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in adultery
a sexual encounter or relationship between a married person and someone other than their spouse
there were charges of unfaithfulness on both sides
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for unfaithfulness
Noun
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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
Noun
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In a tale of power, faith, and betrayal that echoes through time – one man’s ultimate sacrifice becomes humanity’s greatest story.—
Denise Petski,
Deadline,
2 May 2025
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After weeks of discussions, betrayals and guessing, Barnes and team-mate Joe Worrall were revealed as the traitors and won the game.—
Andy Jones,
New York Times,
2 May 2025
Noun
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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
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Within the White Lotus, adultery abounds, couples engage in power plays, and flirtatious encounters occur among old friends and strangers alike.—
Sophie Gilbert,
The Atlantic,
8 Apr. 2025
Noun
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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
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But the most intriguing finish—and the most on-brand level of treachery from Heyman—would be Paul stabbing both Roman and Punk in the back for Rollins.—
Alfred Konuwa,
Forbes.com,
19 Apr. 2025
Noun
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Becciu's departure, amid an ongoing legal battle over financial misconduct charges, adds another layer of drama to a conclave already marked by theological and political tensions within the Catholic Church.—
Dan Cody,
MSNBC Newsweek,
1 May 2025
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His office, which is independent of the 8,700-officer department, monitors misconduct complaints and conducts internal reviews of police shootings, along with audits and studies at the Police Commission’s request.—
Libor Jany,
Los Angeles Times,
30 Apr. 2025
Noun
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Sanyang spent nearly a decade in prison after being convicted of treason and fled to nearby Senegal after his release.—
Colleen Slevin,
Denver Post,
11 Apr. 2025
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Russia accused her of raising money for Ukraine’s military and convicted her of treason, sentencing her to 12 years in prison, BBC reported last year.—
Sean Neumann,
People.com,
10 Apr. 2025
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Cite this Entry
“Unfaithfulness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfaithfulness. Accessed 7 May. 2025.
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