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
Synonyms & Similar Words
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Antonyms & Near Antonyms
1
as in infidelity
lack of faithfulness especially to one's husband or wife
he eventually forgave his wife's unfaithfulness
Synonyms & Similar Words
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
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of unfaithful
Elizabeth Stanton, Fox News, 3 Feb. 2025
Emmy has stood by Will's side throughout it all, especially because he's denied being unfaithful.
—Dave Quinn, People.com, 27 Feb. 2025
In the present day, Alice, Brett, perfectionistic realtor Catherine (Aja Naomi King) and sloppy socialite Birdie (Melissa Fumero) are garden club buddies dealing with separate personal issues, like dead pets, unfaithful spouses and child custody battles.
—Angie Han, The Hollywood Reporter, 23 Feb. 2025
The New Yorker story alleged that Willingham had a reputation for drinking too much, being unfaithful and physically abusing Stacy.
—Emily Blackwood, People.com, 27 Feb. 2025
See All Example Sentences for unfaithful
Adjective
While Anthony, portrayed by Jharrel Jerome, faces his own challenges throughout the film, the matriarch of the movie also raises four children while dealing with an abusive and unfaithful husband, played by Bobby Cannavale.
—Elizabeth Stanton, Fox News, 3 Feb. 2025
Emmy has stood by Will's side throughout it all, especially because he's denied being unfaithful.
—Dave Quinn, People.com, 27 Feb. 2025
In the present day, Alice, Brett, perfectionistic realtor Catherine (Aja Naomi King) and sloppy socialite Birdie (Melissa Fumero) are garden club buddies dealing with separate personal issues, like dead pets, unfaithful spouses and child custody battles.
—Angie Han, The Hollywood Reporter, 23 Feb. 2025
The New Yorker story alleged that Willingham had a reputation for drinking too much, being unfaithful and physically abusing Stacy.
—Emily Blackwood, People.com, 27 Feb. 2025
See All Example Sentences for unfaithful
Recent Examples of Synonyms for unfaithful
Adjective
-
Smith made out their former collaborators to be ungrateful and traitorous, and the kids weren't given the space to question her command.—
Zoey Lyttle,
People.com,
18 Apr. 2025
-
Foreign military interventions can change victims from being viewed as a nuisance into being seen as powerful and traitorous enemies, potentially capable of exacting revenge, seizing power, or breaking away from the state.—
Benjamin A. Valentino,
Foreign Affairs,
17 Oct. 2011
Noun
-
Huston could recognize the ways of that brood: her own renowned and eccentric family inhabited that domestic world of privilege, power, infidelity, and intrigue that became Christie’s writerly milieu.—
Erik Morse,
Vogue,
15 Apr. 2025
-
The exciting news comes after a tumultuous few months for Coi, who kicked off 2025 by announcing a child with Trippie before accusing him of infidelity.—
Mackenzie Cummings-Grady,
Billboard,
15 Apr. 2025
Noun
-
The dream scenario, for many fans at least, was for Kingston and Woods’ betrayal of Big E to lead to an in-ring return for Big E, a former WWE Champion.—
Blake Oestriecher,
Forbes.com,
20 Apr. 2025
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First, of course, is the question of how Matty and Olympia will reckon with Julian's betrayal and the complicity of Howard who, in addition to being Olympia's senior, is also her ex-father-in-law.—
Randall Colburn,
EW.com,
19 Apr. 2025
Noun
-
There’s adultery and cuckoldry and suspicions of adultery and cuckoldry and doubles and all the other good Cronenbergian ideas.—
Bilge Ebiri,
Vulture,
17 Apr. 2025
-
Within the White Lotus, adultery abounds, couples engage in power plays, and flirtatious encounters occur among old friends and strangers alike.—
Sophie Gilbert,
The Atlantic,
8 Apr. 2025
Adjective
-
Poor-quality or biased data can lead to inaccurate threat detection, making security systems unreliable.—
Melkon Hovhannisyan,
Forbes.com,
29 Apr. 2025
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The new prosecution also agreed that the Snapchat evidence was unreliable, but went a step further than the judge, dismissing the case entirely.—
Tresa Baldas,
USA Today,
28 Apr. 2025
Noun
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But the most intriguing finish—and the most on-brand level of treachery from Heyman—would be Paul stabbing both Roman and Punk in the back for Rollins.—
Alfred Konuwa,
Forbes.com,
19 Apr. 2025
-
Sinners is about vampires, perpetual outsiders who desperately yearn to belong, but whose silky promises are rooted in treachery.—
Stephanie Zacharek,
Time,
18 Apr. 2025
Noun
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Nor is either party actually addressing the ballooning financial cost of local police forces in the U.S., nor the long-term reputational costs from police misconduct for trust in the police and government more broadly.—
Christopher S. Warshaw,
The Conversation,
18 Apr. 2025
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Court records show he was then indicted in June 2020 for misconduct in office.—
Will Carless,
USA Today,
18 Apr. 2025
Adjective
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Last year’s 17-9 start proved to be a false spring, one that lulled fans into thinking Craig Counsell replacing David Ross was the real difference between an 83-win Cubs team and the postseason.—
Paul Sullivan,
Chicago Tribune,
25 Apr. 2025
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Trump’s false assertions about the outcome of the 2020 election ultimately led a crowd of supporters to storm the Capitol on Jan. 6, 2021, temporarily disrupting the certification of Biden’s win.—
Elizabeth Crisp,
The Hill,
23 Apr. 2025
Cite this Entry
“Unfaithful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfaithful. Accessed 2 May. 2025.
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