V2 Vocabulary Building Dictionary



Definition: 1. a betrayal of trust and faith; 2. an act of treachery

Synonyms: deception, dishonesty, disloyalty, betrayal, treachery, trickery

Antonyms: loyalty, faithfulness, honesty

Tips: Perfidy originates from the Latin phrase per fidem decipere, which means "to deceive through confidence or trust." Perfidy is used when someone who was trusted initially does something to betray that trust. The adjective perfidious means "dishonest, disloyal, treacherous, corrupt, or deceitful."

Usage Examples:

Benedict Arnold is remembered for his perfidy more than for anything else. (disloyalty)

Her perfidious actions shocked her husband; he could not believe she had betrayed him. (disloyal) adjective

He is a loyal and patriotic man who would never commit perfidy. (betrayal)

She had no conscience, so perfidy came naturally to her. (deception, dishonesty, treachery)

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