Find Antonyms
treasonous Antonyms
Opposite of treasonous
Pinning down the opposite of treasonous requires matching its exact sense, so the antonyms and opposite words below are paired with a clear adjective definition and ranked by contrast strength.
• adjective (Context 1)
Involving, constituting, or guilty of the crime of betraying one's country or sovereign.
Usage Example
"The historical tribunal examined letters that revealed a loyal plot to overthrow the monarchy."
Strongest
loyal
patriotic
allegiant
Strong
faithful
staunch
devoted
steadfast
Similar words to treasonous
Words similar to treasonous shift depending on context. Common synonyms include:
traitorous
treasonable
treacherous
seditious
disloyal
subversive
perfidious
mutinous
• Nearby Words
Cite this Entry
Wordmom. (2026). Antonyms for Treasonous. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/treasonous