This is the 13114th most frequent Spanish word.
preciados
Valued or precious.
Here, 'preciados' is used to describe the sentimental value and importance of the memories.
Los recuerdos de nuestra infancia son preciados.
The memories of our childhood are precious.
In this sentence, 'preciados' indicates the high value, either monetary or cultural, of the paintings.
Los preciados cuadros del museo fueron restaurados cuidadosamente.
The precious paintings of the museum were carefully restored.
Here, 'preciados' describes the cherished and important nature of the family's belongings.