betrayal
noun
[ bɪˈtreɪəl ]
• the action of betraying one's country, a group, or a person; treachery.
• "the betrayal by the king by his daughter"
Similar:
disloyalty,
treachery,
perfidy,
perfidiousness,
bad faith,
faithlessness,
falseness,
duplicity,
deception,
double-dealing,
breach of faith,
breach of trust,
stab in the back,
Judas kiss,
double-cross,
sell-out,
trahison des clercs,
false-heartedness,
Punic faith,
revelation,
disclosure,
divulging,
giving away,
leaking,
leak,
telling,
divulgation,