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
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
-
In addition, Swazi law has a different definition of adultery for men and for women.—
The Editors,
JSTOR Daily,
15 Aug. 2025
-
Certain artistic genres were employed to publicize and critique changes to laws regarding adultery and divorce.—
Smithsonian Magazine,
Smithsonian Magazine,
29 July 2025
Noun
-
The sense of shock and betrayal is palpable in the Qatari capital.—
Paula Hancocks,
CNN Money,
10 Sep. 2025
-
Watching the actors sign language through glee, heartache, torment and even betrayal makes for some stunning scene work.—
Lily Ford,
HollywoodReporter,
9 Sep. 2025
Noun
-
Paxton’s history of misconduct is years in the making.—
Kimberly Ross,
The Washington Examiner,
12 Sep. 2025
-
Paragon was linked to alleged misconduct in Europe after WhatsApp reported that Italian journalists and civil society members had been targeted with its technology.—
Vas Panagiotopoulos,
ArsTechnica,
11 Sep. 2025
Noun
-
When does compromise become treachery or defeat?—
Literary Hub,
Literary Hub,
3 Sep. 2025
-
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
-
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
-
Byron had his arms wrapped around the company's HR chief, Kristin Cabot, and subsequently faced cheating allegations after they were spotted on the jumbotron.—
Megan Cartwright,
MSNBC Newsweek,
1 Sep. 2025
Noun
-
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
-
Ksenia Mironova copes with the absence of her fiancé, also a journalist, who is in prison on charges of treason.—
Justin Chang,
New Yorker,
14 Aug. 2025
Cite this Entry
“Infidelity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infidelity. Accessed 16 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share