1. A path, route, or direction that is unfamiliar, uncharted, or not yet discovered
The explorer ventured into an unknown path through the dense jungle.
O explorador se aventurou por um caminho ignoto através da densa floresta.
2. Figuratively, an uncertain or unclear course of action or future direction
After graduation, she faced an unknown path in her career.
Após a formatura, ela enfrentou um caminho ignoto em sua carreira.