perfidiously

Adverb

Meaning

In a perfidious manner.

Source: Webster's dictionary

Synonyms

false lying dishonest dishonestly insincerely basely deceitfully malevolently disloyally crookedly falsely treacherously maliciously unscrupulously traitorously
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Antonyms

true actually really strictly truly sincerely
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Examples

he was playing perfidiously one side against the other Source: Internet

Close letter words and terms

perfick perfidious Perfidious Albion perfidiousness perfidy perfight