Artificial intelligent assistant

repugner

reˈpugner rare.
  [f. repugn v. + -er1.]
  One who repugns.

c 1449 Pecock Repr. ii. xi. 208 The repungners aȝens the..afore tretid gouernauncis. 1570 Foxe A. & M. (ed. 2) 369/1 Excommunicatyng all repugners and rebellers agaynst the same.

Oxford English Dictionary

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