semichild

plural semichildren

1. A person who is partly a child, or somewhat childlike.

   It may seem paradoxical that in a culture that considers women to be cultural outsiders, perennial semichildren, the task of enculturating the young is entrusted to women.

   1994, Per Schelde, Androids, Humanoids, and Other Science Fiction Monsters, page 75

   1 more example

   They often seemed two sizes too big for the concave-chested semichildren within (hopefully that was a styling trick, if a distressing one, as opposed to just lazy tailoring).

   2015 October 6, Vanessa Friedman, “At Paris Fashion Week, Flight Risk at Chanel and Saint Laurent”, in New York Times