impenetrability

[im-pen-i-truh-bil-i-tee, im-pen-]

See more synonyms for impenetrability on Thesaurus.com

noun

the state or quality of being impenetrable.
Physics. that property of matter by virtue of which two bodies cannot occupy the same space simultaneously.

Origin of impenetrability

First recorded in 1655–65; impenetr(able) + -ability

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for impenetrability

frequency, quantity, thickness, inflexibility, toughness, hardness, durability, body, heaviness, solidity, closeness, concretion, compactness, consistency, massiveness, denseness, impenetrability, substantiality, density, resistance

Examples from the Web for impenetrability

Historical Examples of impenetrability

The impenetrability of the embodied Gould Concession had its surface shades.
Nostromo: A Tale of the Seaboard
Joseph Conrad
But, of course, with his English impenetrability, nobody can tell what he thinks.
Nostromo: A Tale of the Seaboard
Joseph Conrad
Hence arises her impenetrability to whatever is true in Western thought.
Notes on Life and Letters
Joseph Conrad
It is so suitable a scene for a beginning: the darkness, the mystery, the impenetrability.
The Promised Land
Mary Antin
This impenetrability and something mulish in her attitude annoyed him.
Saint's Progress
John Galsworthy