1
as in infidelity
lack of faithfulness especially to one's husband or wife
he eventually forgave his wife's unfaithfulness
Synonyms & Similar Words
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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
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The funniest part was that the clause has some basis considering Johnson has been accused of infidelity by other partners, including Rosado.—
Keydra Manns,
Essence,
27 Feb. 2025 -
Amid his social media rampage, Rob also accused Chyna of drug abuse, alcohol abuse and infidelity.—
Stephanie Wenger,
People.com,
26 Feb. 2025
Noun
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The betrayal of Ukraine by President Donald Trump was hardly unexpected, but its execution—brazen, humiliating, and incredibly public—has left Europeans in shock.—
Gordon G. Chang,
Newsweek,
3 Mar. 2025
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If you’ve been hurt before—through rejection, betrayal or emotional invalidation—exposing your emotions again can seem unbearable.—
Mark Travers,
Forbes,
1 Mar. 2025
Noun
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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
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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
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Witness was his 1952 manifesto on fellow-traveling American liberals and their treachery, which emboldened the Soviet Union.—
Michael Kimmage,
Foreign Affairs,
25 Feb. 2025
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The songs typically crop up in the final act of an episode as the tensions (and treacheries) mount.—
Mark Peikert,
IndieWire,
13 Feb. 2025
Noun
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The main purpose was to allow prospective employers — other federal agencies or local police — to check their backgrounds for misconduct.—
Martin Kaste,
NPR,
28 Feb. 2025
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Between fiscal years 2015 to 2019, agency inspectors general substantiated only 100 allegations of employee time and attendance misconduct or fraud out of a federal workforce of around 2.1 million employees (the GAO report did not include postal workers).—
Laura Doan,
CBS News,
27 Feb. 2025
Noun
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Another power given to the president was also universally considered extremely dangerous: that of granting pardons to individuals guilty of treason.—
Maurizio Valsania,
The Conversation,
5 Mar. 2025
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Fries was arrested, convicted of treason and sentenced to hang.—
Bill Hamilton,
Baltimore Sun,
5 Mar. 2025
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Cite this Entry
“Unfaithfulness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfaithfulness. Accessed 13 Mar. 2025.
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