The phonetic transcription of "perfidy" is /ˈpɜː.fɪ.di/ in British English and /ˈpɜːr.fə.di/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "perfidy": treachery, betrayal, disloyalty.
Example usage of "perfidy": "His perfidy hurt her.". More examples on the page.