Perfidy - Wikipedia 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 - Wiktionary, the free dictionary perfidy (countable and uncountable, plural perfidies) A state or act of violating faith or allegiance; violation of a promise or vow, or of trust synonyms Synonyms: treachery, betrayal
PERFIDY Synonyms: 50 Similar and Opposite Words - Merriam-Webster Synonyms for PERFIDY: infidelity, adultery, betrayal, disloyalty, treachery, faithlessness, perfidiousness, unfaithfulness; Antonyms of PERFIDY: loyalty, devotion, faith, fidelity, allegiance, faithfulness, fealty, constancy