impartial person

noun
UK /ɪmˈpɑːʃəl ˈpɜːsən/
US /ɪmˈpɑːrʃəl ˈpɜːrsən/

A person who treats everyone fairly and does not pick a side.

The teacher was an impartial person, so both teams trusted her to judge the game.


OTHER MEANINGS

2. Someone who decides a disagreement without favoring either side.

The principal acted as an impartial person when the two classes argued.

3. A person who listens to both sides before making a choice.

An impartial person hears everyone out before deciding.

4. Someone who is not part of a fight or contest and can judge it fairly.

They asked an impartial person from another class to pick the winner.