Noun
The act of violating faith or allegiance; violation of a promise or vow, or of trust reposed; faithlessness; treachery.
Source: Webster's dictionaryLife is not an easy matter... You cannot live through it without falling into frustration and cynicism unless you have before you a great idea which raises you above personal misery, above weakness, above all kinds of perfidy and baseness. Leon Trotsky
Perfidy and brutal force thwarted opportunities for calling President Wilson's Arbitral Award to life. Nevertheless, its significance is not to be underestimated: through that decision the aspiration of the Armenian people for the lost Motherland had obtained vital and legal force. Serzh Sargsyan
Age cannot Love destroy, But perfidy can blast the flower, Even when in most unwary hour It blooms in Fancy's bower. Age cannot Love destroy, But perfidy can rend the shrine In which its vermeil splendours shine. Percy Bysshe Shelley
The fact is, beneath the hype, Iraqis will soon appreciate American help and idealism far more than French perfidy. It is never wrong to be on the side of freedom - never. Victor Davis Hanson
I know that when people pull apart, they usually employ misunderstanding as a weapon, deliberately getting hold of the stick's wrong end, impaling themselves on its point in order to prove the perfidy of the other. Salman Rushdie
Dissimulation in youth is the forerunner of perfidy in old age; its first appearance is the fatal omen of growing depravity and future shame. Hugh Blair