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Synonyms & Antonyms of perfidy
1
lack of faithfulness especially to one's husband or wife
- his wife's perfidy was a moment of uncharacteristic weakness
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2
the act or fact of violating the trust or confidence of another
- the full cost—both in compromised intelligence and in human life—of the double agent's perfidy is not yet known
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Merriam-Webster unabridged
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Time Traveler for perfidy
The first known use of perfidy was in 1592
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