> Having developed (of a child) certain abilities or inclinations at an earlier age than is usual or expected.
> Exhibiting mature qualities at an unusually early age
> Exceptionally early in development or occurrence
Precocious got started in Latin when the prefix prae, meaning ahead of, was combined with the verb coquere meaning to cook or to ripen to form the adjective praecox which means early ripening or premature
Example
She was a precocious child who could read before she went to school.
A precocious musician, he was giving concerts when he was seven.