Synonyms of perfidious
7 similar words · 4 opposite words
Another word for perfidious is disloyal. Other synonyms of perfidious are treacherous, traitorous, unfaithful, faithless and duplicitous. The opposite of perfidious is trustworthy.
Synonyms and similar words for perfidious
adjectiveOf, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or...
- deceitful
- disloyalNot loyal, without loyalty.
- duplicitousGiven to or marked by deliberate deceptiveness in behavior or speech.
- faithlessNot true to allegiance, duty, or vows.
- treacherousDeceitful; inclined to betray.
- traitorousCharacteristic of a traitor; disloyal.
- unfaithfulNot keeping good faith; disloyal; not faithful.
Opposite of perfidious
adjectiveMore antonyms
- faithful
- honorable
- loyal
- trustworthyDeserving of trust, reliable.
Meaning of perfidious
- adjective Of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.
perfidious in other languages
Questions about synonyms of perfidious
- What is another word for perfidious?
- Perfidious has 7 synonyms on Word.ws, such as disloyal, treacherous, traitorous, unfaithful, faithless and duplicitous.
- What is the opposite of perfidious?
- The opposite of perfidious is trustworthy.
- What does perfidious mean?
- Perfidious means of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.
Source and license
Adapted from Wiktionary: perfidious (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.
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Cite this page: “Synonyms of perfidious.” Word.ws, https://word.ws/synonyms/perfidious. Based on Wiktionary, CC BY-SA 4.0.