General attributive.

Of a person: girlish, schoolgirlish; (sometimes more generally) childish; used depreciatively, with implication of naive or unsophisticated…

With reference to a lifetime: (a) relating to or connected with childhood or youth; (b) relatively near to the beginning of a lifetime or career…

Occurring prior to the attainment of puberty; that has not yet attained puberty.

Of or relating to the time or age before a child is old enough for school; designating a centre, class, etc., attended by children not old enough…

Of, belonging to, or relating to the two or three years before the beginning of adolescence.

Of or relating to the time or age before a child is old enough to enrol in kindergarten; designating or relating to the school, class, program, etc…

= prepubertal, adj.

Of a child: not yet a teenager; aged under (esp. just under) thirteen. Of a thing: characteristic of or suited to the years (immediately) prior to a…

= prepubertal, adj.