treasonable
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/ˈtriːzənəbl/
🇬🇧
/ˈtriːzənəbl/
disloyal or betraying one's country, punishable by law
He was accused of committing a treasonable act by sharing classified information with the enemy.
他被指控犯有叛国行为,因为他与敌人分享了机密信息。