1. Areas or territories whose boundaries, characteristics, or status have not been clearly defined or established
The map showed several undefined regions along the border.
O mapa mostrava várias regiões indefinidas ao longo da fronteira.
2. In mathematics or computing, areas or spaces that lack precise definition or parameters
The algorithm struggled with undefined regions in the dataset.
O algoritmo teve dificuldades com regiões indefinidas no conjunto de dados.
3. Geographically or administratively ambiguous areas without clear demarcation
Undefined regions often become sources of territorial disputes.
Regiões indefinidas frequentemente se tornam fontes de disputas territoriais.