precocious

Manifesting or characterized by development, aptitude, or interests considered advanced for a given age.

Blossoming before the appearance of leaves.

In biology, present in an egg or embryo at a very early stage in an imperceptible condition; present before becoming manifest.

Noting birds that, like chickens, are able to run about as soon as hatched; precocial. See Præcoces.

Ripe before the natural time.

Ripe in understanding at an early period; prematurely developed; forward: as, a precocious child; precocious faculties.

Indicative of precocity; characteristic of early maturity; anticipative of greater age; premature.

In botany, appearing before the leaves: said of flowers.

Ripe or mature before the proper or natural time; early or prematurely ripe or developed.

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