Precocious
From BiblePortal Wikipedia
Precocious [1]
(1): ( a.) Developed more than is natural or usual at a given age; exceeding what is to be expected of one's years; too forward; - used especially of mental forwardness; as, a precocious child; precocious talents.
(2): ( a.) Ripe or mature before the proper or natural time; early or prematurely ripe or developed; as, precocious trees.