perfidy — deliberate breach of faith or trust; faithlessness; treachery
Part of speech: NOUN
Definition: deliberate breach of faith or trust; faithlessness; treachery
Pronunciation (IPA): /ˈpɜːrfɪdi/
Korean meaning: 고의적인 배신, 불신, 배반 행위
Korean pronunciation: **퍼**피디
Example Sentences
- The spy's perfidy was so complete that even his own mother disowned him.
- After discovering his best friend's perfidy in dating his ex-girlfriend, Mike decided to become a hermit.
- The historian wrote extensively about the perfidy of rulers who betrayed their allies for personal gain.
perfidy
NOUN//ˈpɜːrfɪdi//
deliberate breach of faith or trust; faithlessness; treachery

The royal advisor's perfidy endangers the kingdom through secret betrayal
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When perfidy steals the subsidy, there's no perfect remedy
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Start for Free🎤Pronunciation
🌳Etymology
Origin
From Latin 'perfidus' meaning 'faithless' or 'treacherous', derived from 'per-' (through/completely) and 'fidus' (faithful, from 'fides' meaning faith or trust). The word entered English through Old French 'perfide'.
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“The spy's perfidy was so complete that even his own mother disowned him.”
“After discovering his best friend's perfidy in dating his ex-girlfriend, Mike decided to become a hermit.”
“The historian wrote extensively about the perfidy of rulers who betrayed their allies for personal gain.”
“His perfidy in stealing his roommate's leftover pizza was considered the greatest betrayal in dormitory history.”
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