impartiality

US /ɪmˌpɑːr.ʃiˈæl.ə.t̬i/
UK /ɪmˌpɑːr.ʃiˈæl.ə.t̬i/
1.

vô tư

the fact of not supporting any of the sides involved in an argument:

:
The state must ensure the independence and impartiality of the justice system.