Synonyms|37Antonyms|0|Broader|2Narrower|0Related|18
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faithlessness(noun, treachery, disloyalty, sedition)
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grounds for impeachment(expression, idiom)
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lèse majesté(expression, treachery, disloyalty, sedition)
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misprision
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mutiny(noun, treachery, disloyalty, sedition)
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nonobservance
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perfidy(noun, treachery, disloyalty, treason, sedition)
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petty
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revolt(noun, treachery, disloyalty, sedition)
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revolutionary(noun, treachery, disloyalty, sedition)
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secession
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seditious act(noun, expression, treachery, disloyalty, sedition)
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seditiousness(noun, treachery, disloyalty, sedition)
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subversion(noun, treachery, disloyalty, sedition)
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traitorousness(noun, treachery, disloyalty, treason, sedition)
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treachery(noun, disloyalty, treason, sedition)
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violation
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APASmart Define. (2015). high treason thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/high_treason/thesaurus/synonyms
ChicagoSmart Define. 2015. "high treason thesaurus" https://smartdefine.org/high_treason/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, high treason thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/high_treason/thesaurus/synonyms>.
MLASmart Define. "high treason thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/high_treason/thesaurus/synonyms>