just vs impartial

just and impartial both are adjectives.

Word	Noun	Adjective	Verb	Adverb
just	No	Yes	No	Yes
impartial	No	Yes	No	No

just (adjective)	impartial (adjective)
used especially of what is legally or ethically right or proper or fitting	showing lack of favoritism
fair to all parties as dictated by reason and conscience	free from undue bias or preconceived opinions
free from favoritism or self-interest or bias or deception; conforming with established standards or rules
of moral excellence

just (adverb)	impartial (adverb)
and nothing more
only a moment ago
(used for emphasis) absolutely
only a very short time before
indicating exactness or preciseness
exactly at this moment or the moment described
possibly (indicating a slight chance of something being true)
by a little