1. A space that cannot be entered, pierced, or crossed; an area that is impossible to penetrate physically or metaphorically
The dense jungle formed an impenetrable space that explorers could not traverse.
A densa selva formou um espaço impenetrável que os exploradores não conseguiam atravessar.
2. In physics or philosophy, a region that resists or cannot accommodate physical objects or forces
The theoretical physics model described an impenetrable space at the event horizon.
O modelo de física teórica descrevia um espaço impenetrável no horizonte de eventos.
3. Figuratively, a situation or subject that is difficult or impossible to understand or access
Her emotions remained an impenetrable space that no one could understand.
Suas emoções permaneciam um espaço impenetrável que ninguém conseguia compreender.