pre·co·cious /prɪˈkoʃəs/ 形容詞
1. Ripe or mature before the proper or natural time; early or prematurely ripe or developed; as, precocious trees. [R.]
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: characterized by or characteristic of exceptionally early
development or maturity (especially in mental
aptitude); "a precocious child"; "a precocious
achievement" [ant: retarded]
2: appearing or developing early; "precocious flowers appear
before the leaves as in some species of magnolias"