1
as in infidelity
lack of faithfulness especially to one's husband or wife
he eventually forgave his wife's unfaithfulness
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in betrayal
the act or fact of violating the trust or confidence of another
the jaw-dropping unfaithfulness of the person she had considered her best friend was deeply hurtful
Synonyms & Similar Words
Antonyms & Near Antonyms
3
as in adultery
a sexual encounter or relationship between a married person and someone other than their spouse
there were charges of unfaithfulness on both sides
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for unfaithfulness
Noun
-
The story follows two neighbors, played by Tony Leung Chiu-wai and Maggie Cheung, who form a deep, unspoken connection after suspecting their spouses of infidelity.—
Janey Tracey,
EW.com,
7 Feb. 2025 -
On top of that, Hegseth had to pay for his two divorces, at least in part due to his own infidelity.—
Kyle Khan-Mullins,
Forbes,
7 Feb. 2025
Noun
-
That betrayal then cascaded to a confused arrest, beating, and questioning by Pilate, who by then anticipated rioting.—
Lynne Silva-Breen,
Twin Cities,
7 Feb. 2025
-
What would be the lasting effects of this betrayal from Helena, and how does that seep into how the characters feel about Helly?—
Ethan Shanfeld,
Variety,
7 Feb. 2025
Noun
-
At the time of the case, Bryant admitted to adultery with a 19-year-old resort hotel worker in Colorado but denied the rape allegations, always maintaining that the encounter was consensual.—
George Ramsay,
CNN,
8 Feb. 2025
-
The article included other remarks related to Carter’s faith − such as the importance of the separation of church and state, a conviction born of Carter’s Southern Baptist upbringing − but the adultery comment opened a rift with Carter’s kin in Christ.—
John Bacon,
USA TODAY,
31 Dec. 2024
Noun
-
After a season of treachery and deception, the winner or winners of The Traitors UK Season 3 have been revealed.—
Armando Tinoco,
Deadline,
24 Jan. 2025
-
This would be immediately followed by my dad standing up, racing over to my uncle, and sometimes grabbing him by the collar to stop him from completing an action that in their eyes seemed to be an act of utter betrayal and treachery.—
Wayne Chan,
San Diego Union-Tribune,
21 Jan. 2025
Noun
-
The settlement also requires the league to maintain safeguards put into place after a pair of investigations released in late 2022 that found widespread misconduct that affected multiple teams, coaches and players.—
Anne M. Peterson,
Chicago Tribune,
5 Feb. 2025
-
Yet, there are also upshots in this shift in fan-player dynamic, not least the influence on women who allege mistreatment or misconduct by employers.—
Megan Feringa,
The Athletic,
3 Feb. 2025
Noun
-
Yoon has presidential immunity from most criminal prosecutions, but the privilege does not extend to allegations of rebellion or treason.—
Joel Thayer,
Newsweek,
26 Jan. 2025
-
Yoon has presidential immunity from most criminal prosecutions, but the privilege doesn’t extend to allegations of rebellion or treason.—
Hyung-Jin Kim,
Los Angeles Times,
26 Jan. 2025
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.
Thesaurus Entries Near unfaithfulness
Cite this Entry
“Unfaithfulness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfaithfulness. Accessed 21 Feb. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share