unmatured

Unless the maker of a note is insolvent, a bank can never pay the unmatured note of a depositor.

First fact:—Those faculties or talents which may hitherto have lain latent, unmatured, are aroused into use.

The unmatured powers lying dormant had been aroused to full growth by the indwelling Spirit of God.

Emptying the unmatured fruit on the bed, he cautioned Alfred to eat salt on them and they wouldn't hurt him.

For him, as for other youths, the tree of the knowledge of good and evil had budded apace; the fruit remained for ever unmatured.