Artificial intelligent assistant

excrescential

excrescential, a.
  (ɛkskrɛˈsɛnʃəl)
  [f. L. excrēscenti-a (see excrescence) + -al1.]
  Of the nature of an excrescence, redundant.

1849 Ruskin Sev. Lamps vi. §15. 177 Mane and beard as in the lion..are..excrescential characters. a 1864 Hawthorne Eng. Note-bks. (1879) II. 183 The vestry..occupies that excrescential edifice.

Oxford English Dictionary

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