1
as in infidelity
lack of faithfulness especially to one's husband or wife
a wife who long ago became resigned to the chronic faithlessness of her husband
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in betrayal
the act or fact of violating the trust or confidence of another
the former butler's mercenary faithlessness shocked and offended the royal family
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for faithlessness
Noun
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All the secrets pour out, the revelations of infidelity and addiction and so on, as the group gives vent to the stuff that’s previously been unsayable—not to fix anything, mind you, since some things can’t be fixed.—
Emily Nussbaum,
New Yorker,
12 Mar. 2026 -
These liaisons are consensual but fraught by infidelity, disparities in age and power, shifting norms.—
Judy Berman,
Time,
5 Mar. 2026
Noun
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The streamer said the drama will show how the couple’s love, betrayals and artistic work were shaped by the political and social atmosphere of the time.—
Stewart Clarke,
Deadline,
12 Mar. 2026
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While at the convent, Willa learned about her mother's betrayal, and now Bob wants to be fully honest with her.—
Randall Colburn,
Entertainment Weekly,
11 Mar. 2026
Noun
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The facile novelty of adultery is its own mask, a sexy way of dressing up a deep, frightened longing for security.—
Sara Holdren,
Vulture,
6 Mar. 2026
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The Texas attorney general beat a 2023 impeachment trial on corruption charges and reached a deal to end a long-running securities fraud case but now faces a contentious divorce over allegations of adultery.—
Meg Kinnard,
Chicago Tribune,
17 Feb. 2026
Noun
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After Thomas Hickey was hanged that year for mutiny, sedition and treachery, Washington warned that his fate should serve as a caution to all soldiers.—
Kim Hjelmgaard,
USA Today,
26 Feb. 2026
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With their leader detained, El Mayo’s sicarios, or hit men, declared war against supporters of Chapo’s sons in an attempt to exact vengeance for the treachery and strengthen their own position in the wider organization.—
Daniel DePetris,
Mercury News,
26 Feb. 2026
Noun
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Research on group dynamics shows that dissent is often interpreted as disloyalty rather than contribution.—
Benjamin Laker,
Forbes.com,
16 Jan. 2026
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The courts have warned against treating dissent as disloyalty.—
Chicago Tribune,
Chicago Tribune,
12 Jan. 2026
Noun
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Current law says only those accused of murder or treason can have bail withheld, but this language expands that possibility to other offenses, such as misdemeanors.—
Kayla Dwyer,
IndyStar,
6 Mar. 2026
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While Machar is currently on trial for offenses including treason, fighting has intensified in areas seen as his strongholds, where government troops are trying to disperse the rebels.—
ABC News,
ABC News,
6 Mar. 2026
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Cite this Entry
“Faithlessness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/faithlessness. Accessed 14 Mar. 2026.
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