See impartial in Webster's New World Roget's A-Z Thesaurus II
adjective
Free from bias in judgment:
disinterested, dispassionate, equitable, fair, fair-minded, indifferent, just, nonpartisan, objective, square, unbiased, unprejudiced. Idiom: fair and square. See fairNot inclining toward or actively taking either side in a matter under dispute:
neuter, neutral, nonaligned, nonpartisan, unbiased, uncommitted, uninvolved, unprejudiced. Idiom: on the fence. See fair
Learn more about impartial