Artificial intelligent assistant

unlistened

unˈlistened, ppl. a.
  (un-1 8, 8 c.)

1787 Burns Death R. Dundas 31 Hark, injur'd Want recounts th' unlisten'd tale! 1793 Wordsw. Descr. Sketches 119 The thicket, where th' unlisten'd stock-dove coos. 1864 Pusey Lect. Daniel iii. 105 Noah was the unlistened-to preacher of righteousness during those 120 years. 1876 Mrs. Whitney Sights & Ins. II. 104 One..knows by some fine, unlistened sound,..the nearness of a large body to the touch.

Oxford English Dictionary

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