Webster 1913 Edition
Like a traitor; involving treachery; violating allegiance or faith pledged; traitorous to the state or sovereign; perfidious in private life; betraying a trust; faithless.
Loyal father of a
treacheroussmile, a mask for secret hate.
Syn. – Faithless; perfidious; traitorous; false; insidious; plotting.–
treacherous (comparative more treacherous, superlative most treacherous)
- Exhibiting treachery.
- Deceitful; inclined to betray.
- Unreliable; dangerous.
- a treacherous mountain trail
- (exhibiting treachery): loyal
deceitful; inclined to betray