Meaning of the word perfidious in English

What does perfidious mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

perfidious

US /pɚˈfɪd.i.əs/
UK /pɚˈfɪd.i.əs/

Adjective

1.

unable to be trusted, or showing no loyalty:

Example:
She described the new criminal bill as a perfidious attack on democracy.
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