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
This type of infidelity can stem from dissatisfaction in the relationship or a desire for something different.
—
Melina Khan, USA Today, 25 Sep. 2025
Lorenzo must deal with the repercussions of his infidelity and the weight of all the manipulation.
—Isabella Wandermurem, Time, 24 Sep. 2025
Meanwhile, Lian and Wenyu wrestle with their own infidelities.
—Michael Schaub, Oc Register, 22 Sep. 2025
And finances consistently rank among the top two causes of divorce—right alongside infidelity.
—Essence, 19 Sep. 2025
See All Example Sentences for infidelity
Melina Khan, USA Today, 25 Sep. 2025
Lorenzo must deal with the repercussions of his infidelity and the weight of all the manipulation.
—Isabella Wandermurem, Time, 24 Sep. 2025
Meanwhile, Lian and Wenyu wrestle with their own infidelities.
—Michael Schaub, Oc Register, 22 Sep. 2025
And finances consistently rank among the top two causes of divorce—right alongside infidelity.
—Essence, 19 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
-
Having two fellow cohorts who are both women, who are both considered outsiders, who are both women of color, navigating a very specific set of challenges, that dynamic and the betrayal, ultimately, what happens is so tragic to me.—
Dessi Gomez,
Deadline,
22 Oct. 2025
-
Pursued by brutal mercenaries and a deadly assassin, the trio must navigate twists, betrayals and historical secrets buried deep in Europe’s past.—
Leo Barraclough,
Variety,
22 Oct. 2025
Noun
-
Cohen, like other prosecutors who commit intentional misconduct are shielded – entirely.—
Micah Kimball,
Denver Post,
16 Oct. 2025
-
The immunity would not apply in cases of gross negligence or willful misconduct by the dispatcher.—
Jessie Opoien,
jsonline.com,
15 Oct. 2025
Noun
-
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
-
When does compromise become treachery or defeat?—
Literary Hub,
Literary Hub,
3 Sep. 2025
Noun
-
Both had a bad drinking habit by then, and when Martha confronted Willie about his cheating, a fight broke out.—
Arkansas Online,
Arkansas Online,
11 Oct. 2025
-
In addition to delivering high-quality search results, this method hinders search-engine cheating; artificially boosting your web page by putting up a thousand pages linking to it won’t accomplish much if those pages have low status.—
Jack Murtagh,
Scientific American,
11 Oct. 2025
Noun
-
Some of the coup leaders were eventually convicted of treason and executed, and the names of Odinga and his father came up during interrogations of some suspects.—
CNN Money,
CNN Money,
15 Oct. 2025
-
Unlike Smith, Leyba-Gonzalez was not charged with murder, which is the only crime other than treason that allows Indiana judges to hold defendants without bail.—
Ryan Murphy,
IndyStar,
9 Oct. 2025
Cite this Entry
“Infidelity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infidelity. Accessed 24 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share