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treasonable Synonyms
Another word for treasonable
Choosing another word for treasonable that fits your sentence is easier when synonyms and similar words are paired with an exact adjective definition and ranked by match strength.
• adjective (Context 1)
Involving, constituting, or characteristic of the crime of betraying one's country or sovereign.
Usage Example
"The court ruled that leaking the classified diplomatic correspondence to a foreign power was a treasonous offense."
Strongest
treasonous
traitorous
Strong
seditious
subversive
disloyal
perfidious
treacherous
Weak
insurrectionary
mutinous
Opposites of treasonable
The opposite of treasonable shifts depending on context. Common opposites include:
loyal
patriotic
allegiant
faithful
staunch
devoted
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Treasonable. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/treasonable