Artificial intelligent assistant

impairable

imˈpairable, a. rare.
  [f. impair v. + -able.]
  Capable of being impaired.

a 1665 J. Goodwin Filled w. the Spirit (1867) 26 Though his power of executing..be not impaired, nor indeed impairable..by any negligence, unfaithfulness, or unfruitfulness of men. 1678 Cudworth Intell. Syst. i. iv. §36. 565 Souls..Self-improvable and Self-impairable.

Oxford English Dictionary

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