as in infidelity
lack of faithfulness especially to one's husband or wife
perfidiousness eventually led to the couple's divorce
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for perfidiousness
Noun
-
Nader reportedly ended things due to suspecting Savchenko of infidelity.—
Maureen Lee Lenker,
EW.com,
8 Apr. 2025 -
Not this evil man blaming Tracy for his infidelity!—
Emma Specter,
Vogue,
28 Mar. 2025
Noun
-
But Barbara was never cut out to be a housewife and Nick’s adultery was a devastating blow.—
Patti Callahan Henry,
People.com,
16 Mar. 2025
-
Texas law doesn't consider adultery to be a felony or misdemeanor.—
Marley Malenfant,
Austin American-Statesman,
9 Dec. 2024
Noun
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But betrayals were happening inside their home, too.—
Kim Willis,
USA TODAY,
25 Mar. 2025
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For many customers, these changes represent a fundamental betrayal of what made Southwest different.—
Roger Dooley,
Forbes,
24 Mar. 2025
Noun
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Jane’s fiercely unforgiving tone was adopted by militant Irish nationalists for whom the famine stood as the ultimate proof of English perfidy.—
Fintan O'Toole,
The New Yorker,
10 Mar. 2025
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Those intrepid few who still clung to the belief that American perfidy shielded Duke’s players from true justice just had the rug pulled out from under them by Mangum herself.—
The Editors,
National Review,
17 Dec. 2024
Noun
-
Their internment was declared permissible under the Alien Enemies Act, a law that allowed the wartime detention and deportation of noncitizens of Japanese, German, and Italian ancestry without any evidence of disloyalty.—
Karen Ebel,
TIME,
17 Mar. 2025
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Similarly, alienating a President seemingly intent on smashing anything approaching dissent or disloyalty is not a risk many Washington institutions are willing to take at the moment.—
Philip Elliott,
TIME,
12 Feb. 2025
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Cite this Entry
“Perfidiousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perfidiousness. Accessed 15 Apr. 2025.
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