Checking saved dictionary data and trusted language sources. This will stop automatically if a source does not respond.
/ˈpɜː.fɪ.di/ · noun
A state or act of violating faith or allegiance; violation of a promise or vow, or of trust..
Stratagems must be carefully distinguished strategy from perfidy, since the former are allowed, whereas the latter is prohibited.
Abuse of a protective emblem amounts to perfidy and constitutes a war crime under the customary law of armed conflict.
Ruses of war are legitimate so long as they do not involve treachery or perfidy on the part of the belligerent resorting to them.
Cyberattacks almost inevitably involve an element of deception, such as tricking a user to click on a malicious link. So, to what extent could cyberattacks count as perfidy and therefore be illegal given international humanitarian law?
Germans could not get over the perfidy of it. It was unbelievable that the English, having degenerated to the stage where suffragettes heckled the Prime Minister and defied the police, were going to fight.
Honda Motor Co. is the latest victim of e-mail perfidy, which started when a phony chain letter promised that the automaker would give away free cars.
Letterman roared about the perfidy of lying politicos.
Use perfidy when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Perfidy means A state or act of violating faith or allegiance; violation of a promise or vow, or of trust..
Common synonyms include betrayal, treachery, perfidiousness, breach of promise.
The opposite depends on the specific sense.
Stratagems must be carefully distinguished strategy from perfidy, since the former are allowed, whereas the latter is prohibited.
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.