Artificial intelligent assistant

inflexibleness

inˈflexibleness rare.
  [f. inflexible1 + -ness.]
  = inflexibility1.

a 1617 Hieron Wks. (1619) II. 372 For the inflexiblenesse of it [man's heart], I shewed you erewhile..of what a stony qualitie it is. a 1688 W. Clagett 17 Serm. (1699) 449 The inflexibleness of true doctrine.

Oxford English Dictionary

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