Perfidious

Synonyms of perfidious

• deceitful
• treacherous
• untrustworthy

Antonyms of perfidious

• loyal
• faithful
• trustworthy

Collocations of perfidious

perfidious betrayal

Frequency: 80 %

His perfidious betrayal of his colleagues shocked everyone in the office.

perfidious behavior

Frequency: 70 %

His perfidious behavior towards his friends eventually led to his downfall.

perfidious nature

Frequency: 60 %

She was known for her perfidious nature, always looking out for her own interests above all else.

perfidious character

Frequency: 50 %

The villain in the story was portrayed as having a perfidious character, always scheming and deceiving others.

Idiomatic Expressions for perfidious

• Phrase: perfidious friend
  Meaning: describes someone who pretends to be a friend but is actually disloyal or deceitful
  Usage: She thought he was a loyal companion, but he turned out to be a perfidious friend who betrayed her trust.