Artificial intelligent assistant

subadolescent

subadoˈlescent, n. and a.
  [sub- 19.]
  A. n. = preadolescent n. B. adj. = preadolescent a. a.

1957 R. A. Heinlein Door into Summer ii. 32 Did you ever try to discuss with a subadolescent something the child does not want to talk about? 1977 W. M. Spackman Armful of Warm Girl 33 An enlarged snapshot of two baby boys and two sub-adolescent girls.

Oxford English Dictionary

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