betrayal

1. An act of deliberate betrayal (synset 100751065)
   is a type of: dishonesty, knavery - lack of honesty; acts of lying or cheating or stealing
   subtypes:

   • double cross, double-crossing - an act of betrayal
   • sellout - a betrayal of one's principles principles, country, cause, etc.
   same as: perfidy, treachery, treason
2. The quality of aiding an enemy (synset 104887074)
   is a type of: subversiveness, traitorousness, treason - disloyalty by virtue of subversive behavior

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