favoritism

US /ˈfeɪ.vər.ə.tɪ.zəm/
UK /ˈfeɪ.vər.ə.tɪ.zəm/
1.

편애

unfair support shown to one person or group, especially by someone in authority:

:
•
A parent must be careful not to show favoritism toward any one of their children.
:
favorite