From Longman Dictionary of Contemporary Englishprecociouspre‧co‧cious /prɪˈkəʊʃəs $ -ˈkoʊ-/ adjectiveINTELLIGENTa precocious child shows intelligence or skill at a very young age, or behaves in an adult way – sometimes used to show disapproval in British English
a precocious child who walked and talked early —precociously adverb —precociousness (also precocity) /prɪˈkɒsəti $ -ˈkɑː-/ noun [uncountable]Examples from the Corpusprecocious• The book's narrator is a precocious 12-year-old boy.• The egg needs to be extremely large because it contains the nourishmentrequired to produce a most precociouschick.• Harriet is played by Michelle Trachtenberg, a precocious child actressportraying a precocious child.• There are even two precocious child skaters, who make you realise how long the process of togetherness takes to gell.• It is unclear when Patsy Ramsey first launched her precociousdaughter on the circuit.• Werbach was a precociousenvironmentalist and a leadershipprodigy.precocious child• Harriet is played by Michelle Trachtenberg, a precocious child actress portraying a precocious child.• Scott Konrad had always been a precocious child, Deborah recalled.• In any case, I am cautious about pushing a precocious child on to first grade.• There are even two precocious child skaters, who make you realise how long the process of togetherness takes to gell.Originprecocious(1600-1700)Latinpraecox“becoming ripe early”, from coquere“to cook, ripen”