1. An area of land or region that has not been investigated, studied, or traveled through
The expedition ventured into unexplored terrain in the Amazon rainforest.
A expedição aventurou-se em terreno inexplorado na floresta amazônica.
2. A subject, field, or area of knowledge that has not been thoroughly examined or developed
Artificial intelligence represents unexplored terrain for many businesses.
A inteligência artificial representa um terreno inexplorado para muitos negócios.