1. Betrayal
2. Infidelity
3. Disloyalty
4. Defection
5. Renegade
6. Sedition
7. Subversion
8. Perfidy
9. Treachery
10. Heresy
11. Apostasy
12. Misconduct
13. Malfeasance
14. Malfunction
15. Malfeasance
16. Deviation
17. Disaffection
18. Disobedience
19. Revolt
20. Insurrection
21. Mutiny
22. Revolt
23. Rebellion
24. Insurgency
25. Sedition
26. Sabotage
27. Treacherousness
28. Recidivism
29. Apostasy
30. Treachery

Are you looking for the best ideas and synonyms for the word «treason»? Look no further! This comprehensive list of 30 synonyms for treason will help you express your ideas clearly and accurately. Whether you need to describe a betrayal of trust or a violation of loyalty, this list of synonyms provides you with other words for treason such as infidelity, disloyalty, defection, and more. Whether you are writing a legal document, an essay, or a research paper, these words will help you express your thoughts and ideas in a clear and concise manner.