as in traitorous
not true in one's allegiance to someone or something
colonists who later proved to be unfaithful to the cause of independence
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Recent Examples of unfaithful
This means a substantial majority of answers were unfaithful, omitting mention of information that influenced the output.
—
ArsTechnica, 10 Apr. 2025
Duggar claims the government used a statement posted to his family's Facebook page and attributed to him claiming Duggar had secretly viewed pornography, led a double-life and had been unfaithful to his wife.
—Arkansas Online, 29 July 2025
In My Good Side, the Vanderpump Rules alum, 40, opened up about how her husband admitted to being unfaithful amid the fallout of Rachel Leviss' cheating scandal with Tom Sandoval in 2023, which prompted the end of the latter's nine-year relationship with Ariana Madix.
—Ilana Kaplan, People.com, 22 July 2025
The pair is accused of having been caught being unfaithful.
—Marni Rose McFall, MSNBC Newsweek, 21 July 2025
See All Example Sentences for unfaithful
ArsTechnica, 10 Apr. 2025
Duggar claims the government used a statement posted to his family's Facebook page and attributed to him claiming Duggar had secretly viewed pornography, led a double-life and had been unfaithful to his wife.
—Arkansas Online, 29 July 2025
In My Good Side, the Vanderpump Rules alum, 40, opened up about how her husband admitted to being unfaithful amid the fallout of Rachel Leviss' cheating scandal with Tom Sandoval in 2023, which prompted the end of the latter's nine-year relationship with Ariana Madix.
—Ilana Kaplan, People.com, 22 July 2025
The pair is accused of having been caught being unfaithful.
—Marni Rose McFall, MSNBC Newsweek, 21 July 2025
See All Example Sentences for unfaithful
Recent Examples of Synonyms for unfaithful
Adjective
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Clarisse looks intimidating climbing out of a boat, as does Bushnell’s traitorous Luke, who wields a sharp-looking knife.—
Dessi Gomez,
Deadline,
24 July 2025
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There's a delicious whodunit aspect to it, too, as the list of five potentially traitorous suspects includes the operative's own high-profile wife (Cate Blanchett).—
Brian Truitt,
USA Today,
4 July 2025
Adjective
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However, gut feelings and guesswork will only result in unreliable data, derailing your forecast and robbing you of the ability to anticipate revenue, manage resources and make the informed decisions necessary to drive your company’s growth.—
Julie Thomas,
Forbes.com,
27 Aug. 2025
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The fish are currently held back by unreliable electrical barriers near Romeoville.—
Adriana Pérez,
Chicago Tribune,
27 Aug. 2025
Adjective
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As a part of the settlement, the false electors acknowledged their actions were used in an attempt to overturn an election.—
Jessie Opoien,
jsonline.com,
23 Aug. 2025
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Ament pleaded guilty in 2022 to two counts of wire fraud, one count of making a false statement to a financial institution and one count of submitting a false tax return.—
Michael Slaten,
Oc Register,
22 Aug. 2025
Adjective
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In 2016, a record number of faithless votes were cast.—
Robert Alexander and Anna Dawley,
MSNBC Newsweek,
23 Apr. 2025
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Don Cheadle and Benicio del Toro are both quite good as part of a team that’s tasked with stealing a secret document, setting the stage for a drama involving gangsters, faithless lovers, and white-collar crooks.—
Tim Grierson,
Vulture,
24 Jan. 2025
Adjective
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Picquart reopens the investigation and pushes for a retrial, butting heads with his superiors and with a disloyal, antisemitic subordinate (Grégory Gadebois)—ultimately derailing his military career in the pursuit of justice.—
Richard Brody,
New Yorker,
14 Aug. 2025
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Once viewed as disloyal, this approach is quickly becoming the smartest hedge against a volatile economy.—
Cheryl Robinson,
Forbes.com,
2 July 2025
Adjective
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Yet for most of the year, they are completely cut off by snow, flooding, and treacherous weather.—
David Nikel,
Forbes.com,
16 Aug. 2025
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The mountain is known for its dangerous climbing conditions, made even more treacherous because of the frequency of intense storms.—
Sam Gillette,
People.com,
14 Aug. 2025
Cite this Entry
“Unfaithful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfaithful. Accessed 1 Sep. 2025.
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