Longman Dictionary of Contemporary English
prepubescent
adjective
EXAMPLES FROM CORPUS
▪ Brassieres upholstered with foam rubber were produced as beauty aids even for the well-endowed and even for prepubescent girls.
Douglas Harper's Etymology Dictionary
Wiktionary
prepubescent
a. Before the age at which a person begins puberty. n. A person who has not begun puberty.
WordNet
prepubescent
adj. (especially of human beings) at the age immediately before puberty; often marked by accelerated growth [syn: prepubertal]
Usage examples of "prepubescent".
These would be staging points for the Molt refugees, the females and the prepubescent males driven from what should have been the inviolable core of the theme holdings.
Karyn had her pegged correctly after all: a slightly askew twelve-year-old asimmer with prepubescent fantasies playing a not particularly nice joke on him.
The prepubescent Lucio already looking after his younger brothers, looking to survive on the street, long years from becoming the clan leader of Los Magos.