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perfidious
01
relating to someone or something that is untrustworthy and disloyal
Example
The perfidious diplomat pretended friendship while secretly plotting against the alliance.
Despite making promises of loyalty, the perfidious advisor betrayed the trust of the royal council.
word family
perfidy
Noun
perfidious
Adjective
perfidiously
Adverb
perfidiously
Adverb
perfidiousness
Noun
perfidiousness
Noun
Nearby Words
