What does traitorous mean?
Traitorous describes conduct or a person marked by disloyalty, betrayal, or deliberate breach of trust. The word is especially associated with political and military contexts, where it may condemn actions that harm a country, betray comrades, or surrender an allegiance. It is strongly disapproving and formal rather than neutral, and it normally suggests purposeful treachery rather than an accidental mistake. The related noun traitor denotes someone who betrays a person, organization, or country, while treason refers more formally to betrayal of one's country or ruler. Although treacherous can express similar ideas, traitorous focuses more directly on disloyalty and betrayal, whereas treacherous may also describe something dangerous, deceptive, or unreliable. Understanding the distinction helps writers choose the more precise term for conduct involving broken allegiance or intentional betrayal.
adjectiveDisloyal or unfaithful to a person, group, or country; characterized by betrayal or treachery.
- Disloyal or unfaithful to a person, group, country, or shared cause; betraying trust or acting with harmful intent.
"The resistance leader condemned the traitorous attempt to surrender the city to the occupying forces."
"Her traitorous decision to inform the enemy exposed the entire resistance network."
"The court characterized the official's conduct as traitorous and demanded an explanation."
The word's root also survives in tradition, translation, and betrayal: all recall the ancient idea of handing something over.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does traitorous come from?
Traitorous developed from traitor, which came through Old French traiteur from the Latin traditōr, an agent noun formed from trahere, meaning “to drag” or “draw.” A related form of the Latin root, tradere, means “to hand over” or “deliver,” and also underlies English words such as tradition, translate, betrayal, and treason. The word's sense of betrayal arose from the notion of handing a person or allegiance over to another, especially an enemy.
Related word forms
How traitorous is actually used
This is a formal, strongly disapproving word, commonly used in political, military, legal, and literary contexts. It conveys deliberate betrayal or serious disloyalty and is more emphatic than merely suspicious or unreliable.
Easily confused with traitorous
Both words can describe disloyalty or betrayal, but treacherous can also mean dangerously deceptive or unreliable, while traitorous more specifically suggests disloyalty or betrayal.