O OneWordDaily
AI-generated image
Word of the Day Tuesday, June 9, 2026

perfidious

/pərˈfaɪdiəs/ adjective · British & US
Valid in UKValid in US
Share WhatsApp

What does perfidious mean?

adjective

Disloyal or treacherous in one's actions or attitudes; having a tendency to betray trust or loyalty.

Example

"The company's perfidious actions towards its employees led to a major scandal."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for perfidious

Antonyms of perfidious

Rhymes with perfidious

Etymologically related