Word.ws English Dictionary

Synonyms of treason

15 similar words

Another word for treason is double-dealing. Other synonyms of treason are betrayal, perfidy, treachery and treacherousness.

Synonyms and similar words for treason

nounThe crime of betraying one’s own country.

  • perfidiousnessUnfaithfulness; deceitfulness; perfidy.
  • perfidyA state or act of violating faith or allegiance; violation of a promise or vow, or of trust.
  • treacherousnessTreachery; the characteristic of being treacherous.
  • treacheryAn act or instance of treachery.

nounAn act of treachery, betrayal of trust or confidence.

Meaning of treason

  1. noun The crime of betraying one’s own country.
  2. noun An act of treachery, betrayal of trust or confidence.

Full definition of treason

treason in other languages

Questions about synonyms of treason

What is another word for treason?
Treason has 15 synonyms on Word.ws, such as double-dealing, betrayal, perfidy, treachery and treacherousness.
What does treason mean?
Treason means the crime of betraying one’s own country.

Source and license

Adapted from Wiktionary: treason (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 treason.” Word.ws, https://word.ws/synonyms/treason. Based on Wiktionary, CC BY-SA 4.0.