What does "precociousness" mean?

The condition of being precocious

Precociousness

Common synonyms include: precocity, advanced development, early differentiation, early maturation, emotional strain, haste.

noun

noun ·Rare ·Advanced level

Noun

1
The condition of being precocious uncountable
"Saucy precociousness in learning."
2
intelligence achieved far ahead of normal developmental schedules wordnet

"Saucy precociousness in learning."

From precocious + -ness.