Also found in: Thesaurus, Legal, Encyclopedia, Wikipedia.
Related to impenetrability: density


1. The quality or condition of being impenetrable.
2. The inability of two bodies to occupy the same space at the same time.


(ɪmˌpɛn ɪ trəˈbɪl ɪ ti, ˌɪm pɛn-)

1. the state or quality of being impenetrable.
2. the property of matter by which two bodies cannot occupy the same space simultaneously.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.impenetrability - the quality of being impenetrable (by people or light or missiles etc.)
quality - an essential and distinguishing attribute of something or someone; "the quality of mercy is not strained"--Shakespeare
penetrability, perviousness - the quality of being penetrable (by people or light or missiles etc.)
2.impenetrability - incomprehensibility by virtue of being too dense to understand
incomprehensibility - the quality of being incomprehensible


[ɪmˌpenɪtrəˈbɪlɪtɪ] Nimpenetrabilidad f


nUndurchdringlichkeit f; (of fortress)Uneinnehmbarkeit f; (of enemy lines)Undurchlässigkeit f; (of mind, character, mystery)Unergründlichkeit f; (of theory)Undurchschaubarkeit f, → Undurchsichtigkeit f
References in classic literature ?
It was with an agitated, burning heart and brain that I hurried homewards, regardless of that scorching noonday sun - forgetful of everything but her I had just left - regretting nothing but her impenetrability, and my own precipitancy and want of tact - fearing nothing but her hateful resolution, and my inability to overcome it - hoping nothing - but halt, - I will not bore you with my conflicting hopes and fears - my serious cogitations and resolves.
I will put her to some test," thought I: "such absolute impenetrability is past comprehension.
She took her hands from the desk; folded them in her lap; and sat looking towards the fire, with the impenetrability of an old Egyptian sculpture.
He prided himself on his impenetrability before Dona Rita; on the happiness without a shadow of those four days.
And the use of the term "global novel" raises anxieties around that idea of impenetrability.
However, growing distrust in impenetrability of digital certificates and a large number of successful hacker attacks against confidentiality of storages motivate some organisations to look at opposite direction.
In sections on illusion and media, illusion and the mind, illusive worlds, and questioning illusion, they explore such topics as aesthetic illusion: toward a media-conscious theory of media-elicited immersion as a transmedial phenomenon, a puzzle of fiction and cognitive impenetrability, la comAaAaAeA?
The in group produces an illusion of impenetrability, and significantly lifts and rates its members' ideas and undervalues the abilities of its opponents or the out group.
She argues that this matter theory underpins physical arguments about inertia and impenetrability which resemble Einstein's arguments about the unification of fields in general relativity.
The latter insists on the impenetrability of God, so that if there can be any representation of the divine, it should be in the form of abstraction.
A fog, which originates from the distant mountains surrounding the city-and is thereby held within a circular ridge-fills the air with a thick impenetrability.
Now 74, with a enviable mop of silver hair - flecked, the last time we checked, with pink dye - Cale's long been known as a wilfully wayward rock iconoclast whose unpigeonholeable back catalogue is matched only by a steely-eyed impenetrability in interviews.