precocious
1. [ adjective ] characterized by or characteristic of exceptionally early development or maturity (especially in mental aptitude)
Examples:

"a precocious child" "a precocious achievement"

Related terms: retarded advanced gifted intelligent
2. [ adjective ] (botany) appearing or developing early
Examples:

"precocious flowers appear before the leaves as in some species of magnolias"

Related terms: botany early
Similar spelling:   precociously
  precocity
  precocial
  precision
  precious
  projectionist
  projection
  precook
  prosecution
  preciously
  precise
  precess
  precast
  projector
  precooked
  preciousness
  precisely
  preciosity