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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Example Sentences
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Recent Examples of unfaithful
Conrique’s dusky voice effortlessly conveys the emotional distress, before turning the song into one of bravery, as the protagonist leaves the unfaithful lover and then reminds the ex of all the ways those ongoing habits will lead to heartbreak in future relationships.
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Jessica Nicholson, Billboard, 10 Nov. 2025
Both men had allegedly been unfaithful.
—Madison E. Goldberg, PEOPLE, 7 Oct. 2025
There’s a sociological connection between some things that anti-liberals say and some things that certain liberals say, and that’s because certain liberals were unfaithful to their liberalism.
—Isaac Chotiner, New Yorker, 23 Sep. 2025
However, their relationship deteriorated once Paul found proof that Mortensen was unfaithful early in their relationship and had lied to her for years.
—Monica Mercuri, Forbes.com, 10 Sep. 2025
See All Example Sentences for unfaithful
Recent Examples of Synonyms for unfaithful
Adjective
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Russell fabricates a lie with the rest of the villains, and the heroes believe it, despite a warning from one traitorous tribemate.—
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That video drew the ire of President Donald Trump, who deemed it traitorous.—
Adjective
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However, these boat routes can be limited, and buying tickets on-site has historically been unreliable due to shifting timetables.—
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Designed to be compact and portable, HyDee is targeted at outdoor, industrial, and emergency applications, including scenarios where access to the electrical grid is unreliable or nonexistent.—
Adjective
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Plants that provide winter interest, including sedums, goldenrod, blue false indigo, and ornamental grasses.—
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Today’s teenagers can produce a TikTok video in minutes, but how many of them will learn to analyze the president’s false claim that Tylenol causes autism?—
Adjective
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Consumed by rage and betrayal, Eleanor is driven to take a bloody, supernatural revenge upon her faithless husband.—
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Spouses, in this gritty Philadelphia suburb, are mostly faithless, absent or dead.—
Adjective
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More experienced employees may view it as disloyal or damaging to the organization’s reputation.—
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That was not a popular position in 2022 and 2024, when progressives strained to convince voters that the groups attacking them for being disloyal to the party or to Joe Biden were not trustworthy.—
Adjective
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Snow, ice and freezing temperatures hit parts of Europe on Tuesday, causing treacherous traffic conditions that left at least five people dead in France and forcing the cancellation of hundreds of flights from one of the continent’s busiest airports.—
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With a combination of rain and snow in the week prior, David Motley, the city’s public relations director, said beach conditions were treacherous.—
Cite this Entry
“Unfaithful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfaithful. Accessed 13 Jan. 2026.
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