Examples of perfidy in a Sentence
A man who built his entire administration upon demanding unctuous loyalty from his allies now finds himself wounded by their shabby betrayal. You'd have to go back to one of Spain's humpbacked Hapsburgs to find court perfidy of the variety that is currently depleting the president's power.
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Jack Hitt, Mother Jones, January & February 2006
The petty Robespierres on the public stage appeal to "the real America" to rise up in fury against presidential perfidies; yet in poll after poll the real America keeps telling Washington that it has gone bonkers.
—David L. Kirp, Nation, 8 Mar. 1999
I lived there off and on for twenty years, through graduate studies, marriage, the end of marriage, the perfidies of middle age, all the while unaware of passion.
—Susan Barron, New England Monthly, October 1989
They are guilty of perfidy.
his wife's perfidy was a moment of uncharacteristic weakness
Jack Hitt, Mother Jones, January & February 2006
The petty Robespierres on the public stage appeal to "the real America" to rise up in fury against presidential perfidies; yet in poll after poll the real America keeps telling Washington that it has gone bonkers.
—David L. Kirp, Nation, 8 Mar. 1999
I lived there off and on for twenty years, through graduate studies, marriage, the end of marriage, the perfidies of middle age, all the while unaware of passion.
—Susan Barron, New England Monthly, October 1989
They are guilty of perfidy.
his wife's perfidy was a moment of uncharacteristic weakness
Recent Examples on the Web
More recently, an al Qaeda operative and suspected mastermind behind the 2000 USS Cole bombing — in which suicide bombers sidled up alongside a US warship, waved to the sailors and then detonated explosives — was charged with perfidy, among other crimes.
—Harmeet Kaur, CNN Money, 21 Jan. 2026
The report has raised concerns of perfidy, an act of deception by military forces.
—Jenna Prestininzi, Freep.com, 13 Jan. 2026
Ever since, the president and his closest allies haven’t stopped trying to repackage the perfidy as patriotism.
—Bloomberg Opinion, Twin Cities, 27 Nov. 2025
The ignorance, the hubris, the lies, the perfidy.
—Wesley Stenzel, Entertainment Weekly, 31 Oct. 2025
See All Example Sentences for perfidy
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Harmeet Kaur, CNN Money, 21 Jan. 2026
The report has raised concerns of perfidy, an act of deception by military forces.
—Jenna Prestininzi, Freep.com, 13 Jan. 2026
Ever since, the president and his closest allies haven’t stopped trying to repackage the perfidy as patriotism.
—Bloomberg Opinion, Twin Cities, 27 Nov. 2025
The ignorance, the hubris, the lies, the perfidy.
—Wesley Stenzel, Entertainment Weekly, 31 Oct. 2025
See All Example Sentences for perfidy
Cite this Entry
“Perfidy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perfidy. Accessed 26 Jan. 2026.
Copy CitationKids Definition
perfidy
noun
per·fi·dy
ˈpər-fəd-ē 
plural perfidies
: the quality or state of being faithless or disloyal : treachery
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