disputed

adjective2

1. •
   Argued; not certain, agreed upon, or accepted.

   • The theory, though common, was widely disputed.
2. •
   Claimed by more than one sovereign state.

   • Claimed by both India and Pakistan since their independence in 1947, the 10,000-square-mile region known as Baltistan (population 224,000) is part of the disputed territory of Kashmir. — 1987