perfidious

Phonetic Respelling: [ per-fid-ee-uhs ]

Definition:

adj. tending to betray; especially having a treacherous character as attributed to the Carthaginians by the Romans

Sentence:

We were betrayed by a perfidious ally.

More example sentences:

We were betrayed by a perfidious ally.

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Synonyms:

treacherous; betraying; double-crossing

Antonyms:

trustworthy

How many syllables in perfidious?

4 syllables Play Syllables Game

Divide perfidious into syllables:

per-fid-i-ous

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