1. An area of land whose boundaries, ownership, or political status have not been clearly established or determined
The disputed region remained an undefined territory for decades.
A região contestada permaneceu um território indefinido por décadas.
2. In legal or political contexts, land that lacks clear demarcation or sovereign control
Several undefined territories exist along the border between the two nations.
Vários territórios indefinidos existem ao longo da fronteira entre as duas nações.
3. An area whose jurisdiction or administrative status remains unclear or disputed
The international commission was tasked with resolving the status of the undefined territory.
A comissão internacional foi encarregada de resolver o status do território indefinido.