perfidiousness

And ultimately, we can’t expect that post-truth culture will somehow collapse because of its perfidiousness.

From New York Times ● May 27, 2016

He boasted, however, that he had effected what he could "to aid the brave men who, in Monterey, have determined to die rather than succumb to the invasion and perfidiousness of the Americans."

From Mexico, Aztec, Spanish and Republican Vol. 1 of 2 A Historical, Geographical, Political, Statistical and Social Account of That Country From the Period of the Invasion by the Spaniards to the Present Time; With a View of the Ancient Aztec Empire and Civilization; A Historical Sketch of the Late War; And Notices of New Mexico and California by Brantz Mayer

Among men of the same race and blood, feelings of hatred and instances of perfidiousness are manifest.

From The Anglo-French Entente in the Seventeenth Century by Charles Bastide

What, gracious God, is man, that there should be such inconsistency and perfidiousness in his conduct!

From Life and Times of Washington, Volume 2 Revised, Enlarged, and Enriched by John Frederick Schroeder

The governor and people continued their wonted perfidiousness; the former being more careful in taking, and the latter in giving bribes, than in paying our debts.

From A General History and Collection of Voyages and Travels — Volume 09 Arranged in Systematic Order: Forming a Complete History of the Origin and Progress of Navigation, Discovery, and Commerce, by Sea and Land, from the Earliest Ages to the Present Time by Robert Kerr