1
as in adultery
lack of faithfulness especially to one's husband or wife
infidelity can lead to divorce
Synonyms & Similar Words
Relevance
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
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of infidelity
In a new interview with WSJ Magazine, Isbell says the marriage’s dissolution — the couple filed for divorce in 2023 — wasn’t prompted by infidelity.
—
Joseph Hudak, Rolling Stone, 7 Mar. 2025
Often infidelity is connected to other problems that need to be resolved.
—Madeline Holcombe, CNN, 4 Mar. 2025
The research points to a common issue in monogamous couples: infidelity.
—Paul Du Quenoy, MSNBC Newsweek, 26 Mar. 2025
In various texts, including Apocryphal works that date to around the same time as the Gospels proper, Joseph appears to suspect Mary of infidelity.
—Adam Gopnik, The New Yorker, 24 Mar. 2025
See All Example Sentences for infidelity
Joseph Hudak, Rolling Stone, 7 Mar. 2025
Often infidelity is connected to other problems that need to be resolved.
—Madeline Holcombe, CNN, 4 Mar. 2025
The research points to a common issue in monogamous couples: infidelity.
—Paul Du Quenoy, MSNBC Newsweek, 26 Mar. 2025
In various texts, including Apocryphal works that date to around the same time as the Gospels proper, Joseph appears to suspect Mary of infidelity.
—Adam Gopnik, The New Yorker, 24 Mar. 2025
See All Example Sentences for infidelity
Recent Examples of Synonyms for infidelity
Noun
-
But Barbara was never cut out to be a housewife and Nick’s adultery was a devastating blow.—
Patti Callahan Henry,
People.com,
16 Mar. 2025
-
Texas law doesn't consider adultery to be a felony or misdemeanor.—
Marley Malenfant,
Austin American-Statesman,
9 Dec. 2024
Noun
-
But betrayals were happening inside their home, too.—
Kim Willis,
USA TODAY,
25 Mar. 2025
-
For many customers, these changes represent a fundamental betrayal of what made Southwest different.—
Roger Dooley,
Forbes,
24 Mar. 2025
Noun
-
Instead, each case involved egregious misconduct, including the wholesale fabrication of news stories.—
ArsTechnica,
ArsTechnica,
7 Apr. 2025
-
The Lost in Translation actor discussed the allegation of inappropriate misconduct that led to production halting Aziz Ansari's unfinished film Being Mortal and, later, an investigation.—
Wesley Stenzel,
EW.com,
5 Apr. 2025
Noun
-
Because of that treachery Castor was a pure mortal, but Pollux was a half god.—
Mike Lynch,
Twin Cities,
6 Apr. 2025
-
After weeks of treachery and deception, the final roundtable has been viewed, and the winner or winners for The Traitors Season 3 have been revealed.—
Armando Tinoco,
Deadline,
6 Mar. 2025
Noun
-
Buying American now seems like an act of treason here.—
Matthew J. Friedman,
CNN Money,
1 Apr. 2025
-
Wolsey died in Season 1, but not before bequeathing his showcase to Henry, who returned the favor by accusing his chief minister of treason.—
Bryan Alexander,
USA Today,
30 Mar. 2025
Cite this Entry
“Infidelity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infidelity. Accessed 16 Apr. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share