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
-
Allen, 40, accused her ex-husband of infidelity in various capacities on the 14-track album.—
Lex Goldstein,
PEOPLE,
7 Nov. 2025 -
The film centers on Smita, a small-town housewife whose seemingly ordinary life unravels into a narrative exploring infidelity, deceit and moral ambiguity.—
Naman Ramachandran,
Variety,
7 Nov. 2025
Noun
-
Bianca filed for divorce on the grounds of adultery in 1978, a year after Mick started seeing model Jerry Hall.—
Marina Watts,
PEOPLE,
30 Oct. 2025
-
As China’s economy has grown, so too has its incidence of adultery.—
Sheri Linden,
HollywoodReporter,
23 Oct. 2025
Noun
-
The former activity can be useful; the latter is a clear betrayal.—
Damon Beres,
The Atlantic,
5 Nov. 2025
-
Over the course of eight episodes, the show traces how mounting pressures, deceit and betrayal led to patriarch Alex Murdaugh murdering his wife, Maggie, and their son, Paul, in 2021.—
Brianne Tracy,
PEOPLE,
5 Nov. 2025
Noun
-
His plays gleefully plumb the wickedest aspects of the human psyche, delivering tales of relentless conquest, Jewish perfidy, deals with the devil, and gay love.—
Isaac Butler,
The Atlantic,
3 Nov. 2025
-
The ignorance, the hubris, the lies, the perfidy.—
Wesley Stenzel,
Entertainment Weekly,
31 Oct. 2025
Noun
-
That shift—from policy disagreement to accusations of disloyalty—is not accidental.—
Faisal Kutty,
MSNBC Newsweek,
29 Oct. 2025
-
Continue reading … 'DISAPPOINTED' – Biden's son slams Harris memoir for disloyalty to father's administration.—
,
FOXNews.com,
23 Oct. 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 28 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share