treachery
noun [U] /ˈtretʃ.ər.i/
/-ɚ-/ formalDefinition
› behaviour that deceives or is not loyal to someone who trusts you: Corley said she was standing down as leader because of the treachery of her own colleagues.Disloyalty, betrayal and treason
(Definition of treachery noun from the Cambridge Advanced Learner's Dictionary & Thesaurus
© Cambridge University Press)
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Synonyms and related words:
- backstabber noun
- betrayal noun
- break ranks idiom
- collaborate verb (SUPPORT AN ENEMY)
- collaboration noun (HELPING AN ENEMY)
- deserter noun
- desertion noun
- double-cross verb
- faithless adjective (NOT LOYAL)
- false adjective (NOT LOYAL)
- fifth column noun
- high treason noun
- quisling noun
- sell sb down the river idiom
- sellout noun (BROKEN PROMISE)
- stab sb in the back idiom
- traitor noun
- treasonable adjective
- un-American adjective
- unfaithful adjective
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