Precocious

Pre`co´cious

a.	1.	Ripe or mature before the proper or natural time; early or prematurely ripe or developed; as, precocious trees.
	2.	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.

Adj.	1.	precocious - characterized by or characteristic of exceptionally early development or maturity (especially in mental aptitude); "a precocious child"; "a precocious achievement" Antonyms: retarded - relatively slow in mental or emotional or physical development; "providing a secure and sometimes happy life for the retarded"
	2.	precocious - appearing or developing early; "precocious flowers appear before the leaves as in some species of magnolias"