1. A territory or region that has not yet been explored, mapped, or found by humans
Early explorers sailed the seas searching for undiscovered land.
Os exploradores primitivos navegavam os mares procurando por terra inexplorada.
2. Metaphorically, an unknown area of knowledge, experience, or opportunity
For scientists, quantum physics represents undiscovered land.
Para os cientistas, a física quântica representa uma terra inexplorada.