Artificial intelligent assistant

unmischievous

unˈmischievous, a.
  (un-1 7.)

1821 Lamb Elia i. Quakers' Meeting, Nothing-plotting, nought-caballing, unmischievous synod! 1848 R. W. Hamilton Sabbath v. 170 Though overtrading is a solecism, not unmischievous is the unrequired extension of stock.

Oxford English Dictionary

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