subadolescent

subadolescent

(ˌsʌbædəˈlɛsənt)
adj
1. (Biology) younger than or not quite adolescent
2. (Biology) characteristic of someone who is this age
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
..with a series of subadolescent sex fantasies...The situations are supposed to be sexy, which is certainly a legitimate path.