Main entry: precocious
Definition: characterized by or characteristic of exceptionally early development or maturity (especially in mental aptitude)
Usage: a precocious child; a precocious achievement
Antonyms: retarded
Definition: relatively slow in mental or emotional or physical development
Main entry: precocious
Definition: appearing or developing early
Usage: precocious flowers appear before the leaves as in some species of magnolias
Antonyms: middle
Definition: between an earlier and a later period of time
Antonyms: late
Definition: being or occurring at an advanced period of time or after a usual or expected time
Definition: at or toward an end or late period or stage of development
Antonyms: middle
Definition: of a stage in the development of a language or literature between earlier and later stages
Antonyms: late
Definition: of a later stage in the development of a language or literature; used especially of dead languages
Antonyms: tardily, late, belatedly
Definition: later than usual or than expected