1. treating all people or groups equally; not favoring one side over another; fair and unbiased

Examples

• The judge remained impartial throughout the trial.
• We need an impartial observer to settle this dispute.
• The referee made impartial decisions during the game.
• She gave an impartial review of both candidates.
• The committee sought impartial advice from experts.
• An impartial investigation revealed the truth.
• The mediator maintained an impartial stance during negotiations.