Impartial

adj.thoughtful, calmprofessional

What it means

Judging competing sides without favoring one for irrelevant reasons.

Reach for it when praising a reviewer, decision, or process for fair treatment

An impartial chair gave both groups equal time and applied the same rule.

everyday
fair
the outcome or treatment is just and reasonable
not when Fair can allow justified preference, while impartial stresses lack of favoritism.
everyday
neutral
the person takes no side in the dispute
not when A neutral observer may avoid judgment rather than judge impartially.
warm
open-minded
the person is willing to consider evidence from every side
not when Open-mindedness precedes a decision and does not guarantee equal treatment.
professional
independent
the reviewer is structurally free from control by the parties
not when Independence reduces pressure but does not prove fair judgment.
professional
objective
the judgment rests on observable criteria rather than personal feeling
not when Objective can overclaim certainty where values still shape the criteria.
professional
unbiased
freedom from a particular prejudice or skew must be explicit
not when No person is free of every bias, so the absolute claim may need evidence.
formal
disinterested
the decision-maker has no personal stake in the result
not when Many readers confuse it with uninterested, so use it only in formal prose.
formal
evenhanded
comparable cases receive balanced treatment
not when Evenhanded treatment can still rely on a poorly chosen standard.

impartial judge
An impartial judge disclosed the prior contact and stepped aside.
impartial advice
The clinic offers impartial advice without selling any of the available plans.
remain impartial
Panel members must remain impartial while the final evidence is reviewed.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.