Meaning & use
treasonous
Involving betrayal of one's country, especially by helping its enemies or trying to overthrow its government.
See it in a sentence
The general was accused of treasonous conduct after secretly negotiating with the enemy.
Leaking classified defense plans could be considered a treasonous act.
A note on using this word
Treasonous describes an act, while 'traitorous' more often describes a person's character; both derive from the noun 'treason'.
Words with a similar meaning
traitorousseditious
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
loyalpatriotic
Make it your own
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