Artificial intelligent assistant

quaverous

quaverous, a.
  (ˈkweɪvərəs)
  [f. quaver v. + -ous.]
  Tremulous, quavering.

1918 J. F. Bridge Westm. Pilgrim xi. 146, I can still see two of these old gentlemen..with hardly a quaverous note to mark their years, valiantly voicing ‘I saw lovely Phyllis’.

Oxford English Dictionary

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