Artificial intelligent assistant

rearwardness

rearwardness rare.
  (ˈrɪəwədnɪs)
  [f. rearward a. + -ness.]
  The state of being in the rear or in arrears.

1903 T.P.'s Weekly 16 Oct. 621/2 It is advantageous to keep oneself quite a year behind contemporary literature; this rearwardness saves both time and money.

Oxford English Dictionary

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