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
Synonyms & Similar Words
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
And finances consistently rank among the top two causes of divorce—right alongside infidelity.
—
Essence, 19 Sep. 2025
In the debut episode of Ned’s new podcast, Rock Bottom, the pair will have their first public conversation about Ned’s infidelity since the cheating scandal broke in 2022.
—Luke Chinman, PEOPLE, 16 Sep. 2025
What the audience will get to do is decide the ending of the opera — a comedy about mistaken identity, suspicious lovers and infidelity.
—Sal Pizarro, Mercury News, 13 Sep. 2025
The emotional record, shared alongside a video and lyrics posted to Instagram, hears Thugger addressing infidelity, loyalty, fractured friendships, while taking full accountability for his mistakes.
—Amber Corrine, VIBE.com, 12 Sep. 2025
See All Example Sentences for infidelity
Essence, 19 Sep. 2025
In the debut episode of Ned’s new podcast, Rock Bottom, the pair will have their first public conversation about Ned’s infidelity since the cheating scandal broke in 2022.
—Luke Chinman, PEOPLE, 16 Sep. 2025
What the audience will get to do is decide the ending of the opera — a comedy about mistaken identity, suspicious lovers and infidelity.
—Sal Pizarro, Mercury News, 13 Sep. 2025
The emotional record, shared alongside a video and lyrics posted to Instagram, hears Thugger addressing infidelity, loyalty, fractured friendships, while taking full accountability for his mistakes.
—Amber Corrine, VIBE.com, 12 Sep. 2025
See All Example Sentences for infidelity
Recent Examples of Synonyms for infidelity
Noun
-
Unhappy unions loom large in the novel, which teems with adultery.—
Katy Waldman,
New Yorker,
22 Sep. 2025
-
Thou shalt not commit adultery.—
Lina Ruiz,
Fort Worth Star-Telegram,
22 Sep. 2025
Noun
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But his mass deportation agenda is increasingly viewed as a betrayal, leaving many second-guessing their support.—
Nick Lichtenberg,
Fortune,
1 Oct. 2025
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What begins as betrayal becomes a story of resilience and solidarity—proving Richard picked the wrong trio to mess with.—
Denise Petski,
Deadline,
30 Sep. 2025
Noun
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Ottawa’s best players were out of sync, took too many penalties and were literally left battered and bloody after fights and misconduct penalties.—
Julian McKenzie,
New York Times,
1 Oct. 2025
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Previous stars include Curtiss Cook, who left after season 6, Ntare Mwine, who left after season 3, and original series star Jason Mitchell, who was dropped from The Chi in 2019 amid misconduct allegations.—
Ryan Coleman,
Entertainment Weekly,
1 Oct. 2025
Noun
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And when the surviving crew interrogates the android Ash about his treachery, the book has him pretty much spill the space beans.—
Daniel Dockery,
Vulture,
22 Sep. 2025
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When does compromise become treachery or defeat?—
Literary Hub,
Literary Hub,
3 Sep. 2025
Noun
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People make close, intense bonds when stuck in the Big Brother house together, and Vince and Morgan’s dynamic crosses more lines with each passing day, emotional cheating threatening to tip into physical even as Vince continues to hopelessly cloak his feelings in flimsy analogies and code phrases.—
Ben Rosenstock,
Vulture,
27 Sep. 2025
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Emotional cheating occurs when someone develops a strong connection with someone other than their committed partner, leading to them sharing intimate thoughts, feelings and experiences, Sara Kuburic, a psychotherapist, previously wrote in USA TODAY.—
Melina Khan,
USA Today,
25 Sep. 2025
Noun
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Trump and his allies later branded Comey a leaker, with the president even accusing him of treason.—
Eric Tucker,
Twin Cities,
25 Sep. 2025
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Brown was caught after the raid failed and charged with treason.—
Christopher Tremoglie,
The Washington Examiner,
25 Sep. 2025
Cite this Entry
“Infidelity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infidelity. Accessed 7 Oct. 2025.
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