Impenetrability(n.) Quality of being impenetrable.
Impenetrability(n.) That property in virtue of which two portions of matter can not at the same time occupy the same portion of space.
Impenetrability(n.) Insusceptibility of intellectual or emotional impression; obtuseness; stupidity; coldness.
Impenetrable(a.) Incapable of being penetrated or pierced; not admitting the passage of other bodies; not to be entered; impervious; as, an impenetrable shield.
Impenetrable(a.) Having the property of preventing any other substance from occupying the same space at the same time.
Impenetrable(a.) Inaccessible, as to knowledge, reason, sympathy, etc.; unimpressible; not to be moved by arguments or motives; as, an impenetrable mind, or heart.
Impenetrableness(n.) The quality of being impenetrable; impenetrability.
Impenetrably(adv.) In an impenetrable manner or state; imperviously.
Words within impenetrability