What is the noun for impartial?

There isn't a single perfect noun for "impartial". However, depending on the context, you could use several options:

General Options:

* Impartiality: This is the most direct noun form of "impartial."

* Fairness: This suggests a lack of bias and a focus on equality.

* Objectivity: This implies a lack of personal opinions or feelings influencing judgment.

More Specific Options:

* Neutrality: This emphasizes a lack of involvement or taking sides.

* Disinterest: This highlights the absence of personal gain or benefit from a decision.

* Justice: This suggests a fair and equitable outcome, often in a legal context.

The best noun to use will depend on the specific meaning you want to convey.