Word/Phrase: por su edad
Translation: for his/her age
Pronunciation: poɾ su eˈðað
He is too young for his age - Él es demasiado joven para su edad
She is mature for her age - Ella es madura para su edad
They are wise for their age - Ellos son sabios para su edad
This behavior is unusual for his age - Este comportamiento es inusual para su edad
It is impressive for her age - Es impresionante para su edad