perfide
perfidious · treacherously
Definition & meaning
Perfide means treacherous, deceitful, or deliberately cruel in a sly and underhanded way. It describes an action, plan, or person that harms or betrays someone through cunning, often by exploiting trust or a vulnerable situation.
Depending on context, it can mean either dishonestly deceptive or especially malicious and cruel. It is a strong, usually negative word.
Grammar & Word origin
Perfide is an adjective. Its form changes to agree grammatically with the noun it describes: for example, ein perfider Plan (“a treacherous plan”) and eine perfide Methode (“an insidious method”). Its comparative forms are perfider and am perfidesten.
The word entered German via French perfide, from Latin perfidus, meaning “faithless” or “treacherous,” formed from fides (“faith, trust”).
Synonyms & antonyms
Synonyms:
- hinterhältig — underhanded or sneaky; emphasizes concealment and acting unfairly behind someone’s back.
- heimtückisch — treacherous or insidious; often suggests a concealed danger or a surprise attack.
- tückisch — treacherous or deceptive; can also describe something dangerous or unreliable, such as a slippery surface.
- niederträchtig — despicable or vile; emphasizes moral baseness more than cunning.
Antonyms:
- aufrichtig — sincere and honest, especially in what one says or feels.
- redlich — honest and fair in conduct.
- offen — open or straightforward, rather than concealed or underhanded.
Common phrases & collocations
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Examples
Sein Plan war wirklich perfide.adjective
His plan was truly perfidious.
Sie nutzte sein Vertrauen perfide aus.adverb
She treacherously exploited his trust.
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