imˈpenetrableness
[f. prec. + -ness.]
The quality of being impenetrable; impenetrability.
| 1685 Boyle Enq. Notion Nat. vi. 214 Since motion does not essentially belong to matter, as divisibility and impenetrableness are believed to do. 1748 Richardson Clarissa (1811) I. xl. 301 This impenetrableness..is to be put among the shades in his character. 1866 Geo. Eliot F. Holt xxxv, The cold impenetrableness which he preserved under the ordinary annoyances of business. |