devotion to one's family; fondness for one's family
Describes a person who deeply cares for and prioritizes their family. Often used as a modifier (e.g., 家族思いの父親).
He is very devoted to his family and always spends his days off with them.
家族思いの彼女は、両親のために家を買った。
Being devoted to her family, she bought a house for her parents.