The meaning of PERFIDY is the quality or state of being faithless or disloyal : treachery. How to use perfidy in a sentence.

In the context of war, perfidy is a form of deceptive tactic where one side pretends to act in good faith, such as signaling a truce (e.g., raising a white flag), but does so with the deliberate intention of breaking that promise.

PERFIDY definition: 1. behaviour that is not loyal 2. behavior that is not loyal. Learn more.

Define perfidy. perfidy synonyms, perfidy pronunciation, perfidy translation, English dictionary definition of perfidy. n. pl. per·fi·dies 1. Deliberate breach of faith; calculated violation of trust; treachery: "the fink, whose perfidy was equaled only by his gall" .

PERFIDY meaning: 1. behaviour that is not loyal 2. behavior that is not loyal. Learn more.

Synonyms for PERFIDY: infidelity, adultery, betrayal, disloyalty, treachery, faithlessness, perfidiousness, unfaithfulness; Antonyms of PERFIDY: loyalty, devotion, faith, fidelity, allegiance, faithfulness, fealty, constancy

If you shared your most embarrassing secrets with a friend who then told them to everyone he knows, his betrayal could be described as perfidy. The noun perfidy means "deceitfulness" or …

PERFIDY definition: a perfidious act | Meaning, pronunciation, translations and examples in American English

The earliest known use of the noun perfidy is in the late 1500s. OED's earliest evidence for perfidy is from 1592, in the writing of Gabriel Harvey, scholar and writer. perfidy is a borrowing from French.

See examples of PERFIDY used in a sentence.