Synonyms for Betrayal:

n.

disconnect, inconstancy, a stab in the back, disaffection. trust, sellout, double cross. abandonment (noun)
desertion.
act (noun)
treason, treachery, perfidy.
betrayal (noun)
treason, treachery, perfidy.
disappointments (noun)
downer, anticlimax, false dawn, brave new world, disappointment, shame, letdown.
exhibition of disloyalty (noun)
dishonesty, treachery, deception, perfidy, treason, sellout.
perfidy (noun)
perfidy.
renunciation (noun)
denial, abandonment, turnabout, renouncement, disavowal, apostasy, defection, abdication, abnegation, Retractation, about-face, dereliction, crossing, desertion, backsliding.
treason (noun)
disloyalty, dishonesty, deception.

Other synonyms:

disaffection, disloyalty, sellout, deception. double cross. disconnect. Other relevant words:
disaffection, treason, downer, double cross, treachery, disloyalty, disconnect, sellout, deception, perfidy, dishonesty, letdown.

Usage examples for betrayal

  1. Her Master Percy, for whom she had sacrificed so much, was he not in danger of betrayal and disgrace in case this old lady should touch upon the subject of the money confided to her care to be conveyed to him? – Bessie Bradford's Prize by Joanna H. Mathews
  2. And he wondered as he spoke if he should ever bring any of his possessions back there again, whether, with this cloud, this suspicion of a possible betrayal of his trust resting upon him, he should ever return to Sylvandale school. – Bessie Bradford's Prize by Joanna H. Mathews
  3. However, without betrayal on my part, the trick came to light through the very means she took to make concealment sure. – Eighty Years And More; Reminiscences 1815-1897 by Elizabeth Cady Stanton