Definition of Impenetrability

1. Noun. The quality of being impenetrable (by people or light or missiles etc.).

Exact synonyms: Imperviousness
Generic synonyms: Quality
Derivative terms: Impenetrable, Impervious
Antonyms: Penetrability, Perviousness

2. Noun. Incomprehensibility by virtue of being too dense to understand.
Exact synonyms: Impenetrableness
Generic synonyms: Incomprehensibility
Derivative terms: Impenetrable

Definition of Impenetrability

1. n. Quality of being impenetrable.

Definition of Impenetrability

1. Noun. The characteristic of being impenetrable; invulnerability. ¹

¹ Source: wiktionary.com

Definition of Impenetrability

1. [n -TIES]

Medical Definition of Impenetrability

1. 1. Quality of being impenetrable. 2. That property in virtue of which two portions of matter can not at the same time occupy the same portion of space. 3. Insusceptibility of intellectual or emotional impression; obtuseness; stupidity; coldness. Origin: Cf. F. Impenetrabilite. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Impenetrability

impellents
impeller
impellers
impelling
impellor
impellors
impels
impen
impend
impended
impendence
impendency
impendent
impending
impends
impenetrability
impenetrable
impenetrableness
impenetrably
impenetralia
impenitence
impenitences
impenitencies
impenitency
impenitent
impenitently
impenitents
impennate
impenned
impennes

Literary usage of Impenetrability

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Elements of Molecular Mechanics by Joseph Bayma (1866)
"Impenetrability, as well as reactivity, arises evidently from the ... from the impenetrability of bodies inferred the impenetrability of each simple element ..."

2. Orr's Circle of the Sciences: A Series of Treatires on the Principles of by Richard Owen, John Radford Young, Wm S Orr, Alexander Jardine, Robert Gordon Latham, Edward Smith, William Sweetland Dallas (1856)
"Impenetrability.—Impenetrability is that property of matter which ... There are instances, however, of what is called the impenetrability of matter, ..."

3. A System of Natural Philosophy: In which the Principles of Mechanics by John Lee Comstock (1834)
"They are Impenetrability, Extension, Figure, Divisibility, Inertia, and Attraction. Impenetrability.—By impenetrability, it is meant that two bodies cannot ..."

4. Autology: An Inductive System of Mental Science; Whose Centre is the Will by David Henry Hamilton (1873)
"Let it be observed also that there could be no consciousness of an external impenetrability without first being possessed of the consciousness of an ..."

5. A Course of Lectures on Natural Philosophy and the Mechanical Arts by Thomas Young (1845)
"A similar difficulty would occur if we attempted to define matter by its impenetrability or mutual repulsion, or if we considered every thing as material ..."

6. Properties of Matter by Peter Guthrie Tait (1890)
"Impenetrability. The sense in which we are to understand this term depends ... Thus the strictly scientific use of the term impenetrability need not occupy ..."

7. The Circle of the Sciences: A Series of Treatises on the Principles of by William Somerville Orr (1860)
"Impenetrability.—Impenetrability is that property of matter which ... There are instances, however, of what is called the impenetrability of matter, ..."

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