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Webster 1913 Edition


Treacherous

Treach′er-ous

,
Adj.
[See
Treacher
.]
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
treacherous
son.
Shakespeare
The
treacherous
smile, a mask for secret hate.
Cowper.
Syn. – Faithless; perfidious; traitorous; false; insidious; plotting.
Treach′er-ous-ly
,
adv.
Treach′er-ous-ness
,
Noun.

Definition 2022


treacherous

treacherous

English

Adjective

treacherous (comparative more treacherous, superlative most treacherous)

  1. Exhibiting treachery.
  2. Deceitful; inclined to betray.
  3. Unreliable; dangerous.
    a treacherous mountain trail

Antonyms

  • (exhibiting treachery): loyal

Related terms

Translations