1. A path, route, or direction that is not familiar or has not been traveled before; an unfamiliar way
The adventurer walked down an unknown path into the forest.
O aventureiro caminhou por uma senda desconhecida dentro da floresta.
2. A figurative reference to an unexplored course of action, direction in life, or uncertain future
After losing his job, he decided to embark on an unknown path in his career.
Após perder seu emprego, ele decidiu seguir uma senda desconhecida em sua carreira.