1. Borders or limits that are clearly defined and not subject to disagreement, challenge, or legal dispute
The treaty established undisputed boundaries between the two nations.
O tratado estabeleceu fronteiras indisputáveis entre as duas nações.
2. Geographic or territorial demarcations that are universally accepted and recognized
After the agreement, the undisputed boundaries were marked on official maps.
Após o acordo, as fronteiras indisputáveis foram marcadas em mapas oficiais.