Artificial intelligent assistant

unpenetrated

unˈpenetrated, ppl. a.
  (un-1 8.)

[1775 Ash.] 1781 Pennant Hist. Quadrup. I. 161 In some of those remote parts..unpenetrated yet by Europeans. 1831 Carlyle Sart. Res. ii. viii, An American Backwoodsman, who had to fell unpenetrated forests. 1868 Milman St. Paul's 160 The unpenetrated darkness of futurity.

Oxford English Dictionary

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