precociousness
nounUK /prɪˈkəʊʃəsnəs/
US /prɪˈkoʊʃəsnəs/
The quality of being smarter or more grown-up than most kids your age.
Her precociousness showed when she started reading chapter books at age four.
RELATED WORDS
OTHER MEANINGS
2. The state of developing or happening earlier than usual.
The precociousness of the spring flowers surprised the gardeners.
3. Behavior that seems too adult for a young person.
His precociousness made the adults laugh during dinner.
4. An early display of skill or ability.
The young pianist's precociousness won her a scholarship.