n. 早熟

[ noun ]
intelligence achieved far ahead of normal developmental schedules
<noun.cognition>

Precociousness \Pre*co"cious*ness\, Precocity \Pre*coc"i*ty\, n.
[Cf. F. pr['e]cocit['e].]
The quality or state of being precocious; untimely ripeness;
premature development, especially of the mental powers;
forwardness.

Saucy precociousness in learning. --Bp.
Mannyngham.

That precocity which sometimes distinguishes uncommon
genius. --Wirt.