1. A potential outcome, option, or circumstance that has not yet been identified, discovered, or considered; an undiscovered or unexplored potential occurrence
The research team uncovered an unknown possibility that could revolutionize the field.
A equipe de pesquisa descobriu uma possibilidade desconhecida que poderia revolucionar o campo.
2. An opportunity or potential result that lies beyond current knowledge or awareness
We must remain open to unknown possibilities in this investigation.
Devemos permanecer abertos a possibilidades desconhecidas nesta investigação.