Genius
Person Of Exceptional Talent, Exceptionally Talented Person
noun
A genius genius is a genius, aka a person of exceptional talent. So smart!
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
この問題集は俊才児を対象にして作られているので、あなたのお子さんには難しすぎますよ。
This textbook is designed for genius children, so it will be difficult for your kid.