A great physicist tells us that, when dealing with sufficiently high speeds, matter has no such property as impenetrability.
But, of course, with his English impenetrability, nobody can tell what he thinks.
By long residence in Holland, he had adopted a good portion of Dutch impenetrability and slowness.
The impenetrability of the embodied Gould Concession had its surface shades.
The cotton-wool experiment is therefore no contradiction of impenetrability.
Hence arises her impenetrability to whatever is true in Western thought.
The towering closeness of these on each hand, their impenetrability, and their ponderousness, are felt as a physical pressure.
This impenetrability and something mulish in her attitude annoyed him.
Nothing was more remarkable than his impenetrability to ridicule and censure.
Monroe, in his impenetrability, did not see anything unusual.