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
The responsibility and reasoning behind infidelity lie solely with the person who cheated.
—
Mark Travers, Forbes.com, 2 June 2025
But every summit and accolade only deepened her despair, which in turn created harmful behaviours, like seeking abusive relationships driven by deception, manipulation, and infidelity.
—Outside Online, 28 May 2025
These include infidelities, unspoken longings, and thorny questions of land inheritance.
—The New Yorker, New Yorker, 2 June 2025
This places the blame on the victim rather than the perpetrator of infidelity.
—Mark Travers, Forbes.com, 2 June 2025
See All Example Sentences for infidelity
Mark Travers, Forbes.com, 2 June 2025
But every summit and accolade only deepened her despair, which in turn created harmful behaviours, like seeking abusive relationships driven by deception, manipulation, and infidelity.
—Outside Online, 28 May 2025
These include infidelities, unspoken longings, and thorny questions of land inheritance.
—The New Yorker, New Yorker, 2 June 2025
This places the blame on the victim rather than the perpetrator of infidelity.
—Mark Travers, Forbes.com, 2 June 2025
See All Example Sentences for infidelity
Recent Examples of Synonyms for infidelity
Noun
-
Every look with such an irregular desire is in our Savior’s opinion a virtual adultery. . . .—
Merve Emre,
New Yorker,
16 June 2025
-
The sixth commandment in Catholic teaching prohibits adultery.—
Ruth Graham,
New York Times,
22 May 2025
Noun
-
The tricky thing is that the Jackal, across the 10 episodes, does despicable acts of violence and betrayal in order to achieve his goal.—
Ryan Fleming,
Deadline,
19 June 2025
-
Better to categorize Lacey’s latest as its own genre, a category-defining, creative, thought-provoking piece of literature on loss, betrayal, friendships, faith, and more….Unlike life, there is no beginning or end, just a story that follows its own strange, wild, and mesmerizing pattern.—
Gabrielle Bellot,
Literary Hub,
17 June 2025
Noun
-
The response made mention of the allegations against Fleming of misconduct.—
Jackson Thompson,
FOXNews.com,
30 June 2025
-
On Friday, Paniagua was being held in a county jail on a $10,000 bond on felony misconduct and perjury charges, according to online sheriff’s office records.—
David Goodhue,
Miami Herald,
27 June 2025
Noun
-
The six-parter, to debut July 14, follows six groups of friends, and six historical cases of murder and treachery among them.—
Etan Vlessing,
HollywoodReporter,
19 June 2025
-
But amid the bloodbaths and treacheries, Westeros still penciled in time for a little romance — some more compelling than others (Jon and Ygritte > Jon and Daenerys).—
Tyler Aquilina,
EW.com,
17 Apr. 2025
Noun
-
Hichilema was accused of treason after his motorcade failed to give way to Lungu’s presidential convoy.—
Jacob Zimba,
Los Angeles Times,
20 June 2025
-
Notable Tanzanian opposition leader Tundu Lissu is set to represent himself in his treason trial after being denied the right to a private meeting with his lawyers.—
Yinka Adegoke,
semafor.com,
18 June 2025
Cite this Entry
“Infidelity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infidelity. Accessed 3 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share