impenetrability
Definitions
The quality or state of being impossible to pass through or enter.
The physical property of matter by which two bodies cannot occupy the same space at the same time.
The quality of being impossible to understand or comprehend.
Examples
The sheer impenetrability of the fortress walls made it impossible for the invading army to breach the city.
Scientists were baffled by the impenetrability of the new synthetic material, which could withstand extreme pressure without a single scratch.
The author's complex writing style and dense metaphors contributed to the overall impenetrability of the novel.
Synonyms
impermeability solidity hardness impassability inaccessibility density compactness
Antonyms
permeability porosity accessibility softness transparency vulnerability openness