An act of betrayal, especially one disguised as a gesture of friendship.
disloyalty, treachery, perfidy, perfidiousness, bad faith, faithlessness, falsenessView synonyms
- ‘The fine acting held the audience, adults and teenagers throughout while the final, agonised Judas kiss brought some to tears.’
Early 15th century: with biblical allusion (Matt. 26:48) to the betrayal of Jesus Christ by Judas Iscariot.