traitorous
Definitions
Guilty or capable of betrayal; characterized by treachery.
Relating to or characteristic of a traitor; disloyal or treacherous.
Examples
The general was executed after his traitorous plot to overthrow the king was discovered.
He felt a sense of guilt for his traitorous decision to share confidential company information with a competitor.
Synonyms
treacherous disloyal perfidious betraying faithless subversive unfaithful