precocious
🇺🇸
/prɪˈkəʊʃəs/
🇬🇧
/prɪˈkəʊʃəs/
being more advanced or skilled at a young age than is usual
The child's ability to read and write at such a young age is considered precocious.
こんなに若い年齢で読み書きができる子供は、早熟とみなされています。