Antonyms of adj impartial

2 senses of impartial

Sense 1
impartial (vs. partial) -- (showing lack of favoritism; "the cold neutrality of an impartial judge")

partial (vs. impartial) -- (showing favoritism)
        => biased, colored, coloured, one-sided, slanted -- (favoring one person or side over another; "a biased account of the trial"; "a decision that was partial to the defendant")

Sense 2
unprejudiced (vs. prejudiced), impartial -- (free from undue bias or preconceived opinions; "an unprejudiced appraisal of the pros and cons"; "the impartial eye of a scientist")


Similarity of adj impartial

2 senses of impartial

Sense 1
impartial (vs. partial) -- (showing lack of favoritism; "the cold neutrality of an impartial judge")
       => disinterested -- (unaffected by self-interest)
       => dispassionate, cold-eyed -- (unaffected by strong emotion or prejudice; "a journalist should be a dispassionate reporter of fact")
       => indifferent, unbiased, unbiassed -- (characterized by a lack of partiality; "a properly indifferent jury"; "an unbiasgoted account of her family problems")
       => indifferent -- (marked by no especial liking or dislike or preference for one thing over another; "indifferent about which book you would give them"; "was indifferent to their acceptance or rejection of her invitation")
          Also See-> fair#1, just#3

Sense 2
unprejudiced (vs. prejudiced), impartial -- (free from undue bias or preconceived opinions; "an unprejudiced appraisal of the pros and cons"; "the impartial eye of a scientist")
       => color-blind, colour-blind, nonracist -- (unprejudiced about race)
          Also See-> receptive#2, open#15