perfidious
/pə:'fidiəs/
Definition
Adjective: 1. Deceitful and untrustworthy; deliberately faithless: Describes a person, action, or nature that betrays trust or loyalty, often through deliberate deception. 2. Treacherous: Characterized by a readiness to betray confidence or allegiance.
Usage
The word "perfidious" is a formal and strong adjective used to describe a profound breach of faith. It implies intentional, calculated betrayal, not mere carelessness. It is often used in literary, historical, or political contexts.
Examples
- The king was overthrown by his perfidious advisor, who had secretly conspired with the enemy.
- History remembers him as a perfidious ally who broke every treaty he signed.
- She was heartbroken by her friend's perfidious act of sharing her confidential secrets.
Advanced Usage
- "Perfidious Albion": A historical literary epithet for England, used particularly by French writers, suggesting a nation perceived as treacherously pursuing its own interests in foreign policy.
- Inherent Nature: Often used to suggest the betrayal is a fundamental character trait, not a one-time act. E.g., "the perfidious nature of the regime's promises."
Variants and Related Words
- Perfidy (noun): The act or an instance of being perfidious; treachery.
- His perfidy shocked everyone who had trusted him.
- Perfidiously (adverb): In a perfidious manner.
- He perfidiously switched sides during the conflict.
Synonyms
- Treacherous: Guilty of or involving betrayal of trust.
- Traitorous: Involving betrayal of one's country, group, etc.
- Faithless: Disloyal, especially to a spouse or partner.
- Duplicitous: Deceitful in speech or conduct.
Antonyms
- Faithful: Loyal and steadfast.
- Loyal: Giving or showing firm and constant support.
- Trustworthy: Able to be relied on as honest or truthful.
Related Idioms and Phrases
- A perfidious friend: A classic phrase describing the ultimate betrayal from someone within one's circle of trust.
- Perfidious to the core: An emphatic phrase meaning thoroughly and inherently treacherous.
Adjective
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tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans
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Punic faith
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the perfidious Judas
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the fiercest and most treacherous of foes
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treacherous intrigues
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