as in infidelity
lack of faithfulness especially to one's husband or wife
perfidiousness eventually led to the couple's divorce
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for perfidiousness
Noun
-
Season 2 finds the couple becoming the talk of the town after a cast trip to Vanderpump Villa leaves Demi facing accusations of infidelity.—
Angela Andaloro,
People.com,
15 May 2025 -
This case is about love, jealousy, infidelity and money.—
Jenna Sundel
Joshua Rhett Miller,
MSNBC Newsweek,
15 May 2025
Noun
-
The synopsis reads: 1972: The Ecclesiastical Court of Santiago de Compostela convicted Sagrario Fra, a shellfish harvester in Ferrol, for committing adultery.—
Zac Ntim,
Deadline,
31 July 2024
-
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
Noun
-
Blasting his policies as a betrayal of the nation’s founding principles, the former vice president warned of a looming constitutional crisis.—
Seema Mehta,
Los Angeles Times,
12 May 2025
-
The top Senate Democrat's support for the bill moving forward, in which he was joined by nine other members of the chamber's Democratic Caucus, prevented a government shutdown, but was seen by many in his party as a betrayal.—
Jason Lemon,
MSNBC Newsweek,
10 May 2025
Noun
-
The prior month, Vice President JD Vance had lodged his own complaints about Europe’s alleged perfidy, threatening that the United States might withdraw its security guarantees from Europe if the EU continued to aggressively regulate U.S. tech companies.—
ANU BRADFORD,
Foreign Affairs,
21 Apr. 2025
-
Despite high trade deficits, the U.S. economy is strong Trump and his advisers point to America’s lopsided trade numbers—year after year of huge deficits—as proof of foreigners’ perfidy.—
Time,
Time,
9 Apr. 2025
Noun
-
The message is unmistakable: disloyalty to the narrative will be punished.—
Tony Bradley,
Forbes.com,
18 Apr. 2025
-
The Game is speaking up after the controversial figure attempted to call him out for disloyalty on X/Twitter.—
Jessica Bennett,
VIBE.com,
14 Apr. 2025
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Cite this Entry
“Perfidiousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/perfidiousness. Accessed 21 May. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share