Perfidious (adj)
pur-fid-ee-us
Deceitful and untrustworthy
I love this word, it sounds like its definition, I couldn’t imagine it meaning anything pleasant.
Example sentences
“His ambition was boundless and no means, however perfidious, were despised by him.”
“The rebellion was at last put down by a series of treacheries and perfidious negotiations.”
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