disloyal
1. [ adjective ] showing lack of love for your country
Synonyms: unpatriotic
Related terms: patriotic un-American
2. [ adjective ] deserting your allegiance or duty to leader or cause or principle
Examples:

"disloyal aides revealed his indiscretions to the papers"

Related terms: loyal rebel faithless mutinous awol recreant traitorous insurgent unpatriotic loyalty
Similar spelling:   disloyalty
  disloyally
  diesel_oil