Definitions

1. adjective

Disloyal or treacherous in one’s feelings or actions; showing or feeling disloyalty or treachery

“The politician was accused of being traitorous to his country’s values.”

2. adjective

Betrayer or one who betrays a trust

“The traitorous spy was caught and put on trial.”

3. noun

A quality of being disloyal or treacherous

“The traitorous nature of his actions was evident to everyone.”