Thesaurus

perfidy

noun

Synonyms and Antonyms of PERFIDY

1
lack of faithfulness especially to one's husband or wife <he decided to forgive his wife's perfidy, choosing to ascribe it to a moment of uncharacteristic weakness>
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>

Browse

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears