(Idiomatic) Within the applicable rules.
The definition of impartial is not favoring one side or opinion more than another.
An individual or entity serving as an arbitrator or adjudicator (jargon / legal).
Uninfluenced by emotions or personal prejudices:
To do justice to; to relieve from wrong; to restore rights to; to assert or regain the rights of.
The definition of unbiased is a neutral person or persons.
Contrary to justice or a sense of fairness:
Find another word for even-handed. In this page you can discover 19 synonyms, antonyms, idiomatic expressions, and related words for even-handed, like: balanced, equitable, fair, fair-and-square, impartial, just, justifiable, neutral, objective, right and unbiased.