Artificial intelligent assistant

unchiselled

unˈchiselled, ppl. a.
  (un-1 8.)

1772 J. Ives H. Swinden's Gt. Yarmouth Pref. 1 The unchizelled stone, or rudest hieroglyphic, accompanied the songs of the Bards, to perpetuate a whole nation. 1830 Westm. Rev. Jan. 46 Unchiselled stones, according to Pausanias, were the first images of the gods of the Greeks. 1854 Grace Greenwood Haps & Mishaps 3 The pure and graceful Greek column makes no solid or defiant show of strength, like the unchiselled stone or the jagged rock.

Oxford English Dictionary

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