unexplored
adj. B2 Upper Intermediate US //ˌənɪksˈpɫɔɹd// UK //ˌʌnɛksplˈɔːd// un·ex·plored
adj. not yet visited or studied by people. You use this to describe places or ideas that are still a mystery.
adj. not yet visited, studied, or developed. Often used to describe remote geographical areas or uncharted intellectual territory.
The hikers discovered an unexplored valley.
Scientists are currently mapping the unexplored depths of the ocean floor to find new species.
The novel explores the unexplored psychological consequences of isolation, presenting a world where the protagonist's internal landscape is as vast as the physical wilderness around him.
From un- + explored.