treasonously
In seditious manner
In a manner that betrays one's country or sovereign.
The word appears in legal and political contexts describing acts of disloyalty: He was accused of treasonously passing secrets to the enemy.
Like treasonous itself, the adverb carries serious weight—treason being among the gravest charges in law.
In a betraying manner
- perfidiouslyWith deceitful disloyalty
- disloyallyIn a treacherous manner
- mutinouslyIn a rebellious way
- rebelliouslyIn a disobedient manner
insidiously · subversively · conspiratorially · deceitfully · underhandedly · duplicitously · faithlessly · sneakily
Breaking of trust
- seditionInciting revolt against government
- espionageCovert intelligence gathering
- sabotageDeliberate disruption of operations
- treacheryDeliberate violation of trust
conspiracy · collusion · defection · insurrection · mutiny · coup · rebellion · subversion
One who betrays allegiance
- quislingTreasonous occupation collaborator
- defectorOne who abandons allegiance
- collaboratorOne who works jointly
- informantOne who provides intelligence
spy · mole · renegade · betrayer · conspirator · seditionist · insurgent · mutineer
treacherously
In a betraying manner
- perfidiouslyWith deceitful disloyalty
- disloyallyIn a treacherous manner
- mutinouslyIn a rebellious way
rebelliously · insidiously · subversively · conspiratorially · deceitfully · underhandedly · duplicitously · faithlessly · sneakily · furtively
betrayal
Breaking of trust
- seditionInciting revolt against government
- espionageCovert intelligence gathering
- sabotageDeliberate disruption of operations
treachery · conspiracy · collusion · defection · insurrection · mutiny · coup · rebellion · subversion · undermining
turncoat
One who betrays allegiance
- quislingTreasonous occupation collaborator
- defectorOne who abandons allegiance
- collaboratorOne who works jointly
informant · spy · mole · renegade · betrayer · conspirator · seditionist · insurgent · mutineer · deserter
treasonouslypatriotically
With devotion to homeland
loyally · faithfully · dutifully · devotedly · nationalistically
- treasonous actsBetrayals of one's nation