blended family

US /ˈblen.dɪd ˌfæm.ɪ.li/
UK /ˈblen.dɪd ˌfæm.ɪ.li/
"blended family" picture
1.

a family consisting of a couple and their children from previous relationships, and often their children together

:
They formed a happy blended family after their remarriage.
It can be challenging to navigate the dynamics of a blended family.