Antonyms of noun nonpartisan

1 sense of nonpartisan

Sense 1
nonpartisan, nonpartizan -- (a person who is nonpartisan)
       Antonym of partisan (Sense 1)
      => partisan, zealot, drumbeater -- (a fervent and even militant proponent of something)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun nonpartisan

1 sense of nonpartisan

Sense 1
nonpartisan, nonpartizan -- (a person who is nonpartisan)
       => person, individual, someone, somebody, mortal, soul -- (a human being; "there was too much for one person to do")

Antonyms of adj nonpartisan

1 sense of nonpartisan

Sense 1
nonpartisan (vs. partisan), nonpartizan -- (free from party affiliation or bias)

partisan (vs. nonpartisan), partizan -- (devoted to a cause or party)
        => party-spirited -- (devoted to a political party)
        => tendentious, tendencious -- (having or marked by a strong tendency especially a controversial one; "a tendentious account of recent elections"; "distinguishing between verifiable fact and tendentious assertion")

Similarity of adj nonpartisan

1 sense of nonpartisan

Sense 1
nonpartisan (vs. partisan), nonpartizan -- (free from party affiliation or bias)
       => bipartisan, bipartizan, two-party, two-way -- (supported by both sides; "a two-way treaty")
       => independent -- (not controlled by a party or interest group)
       => unbiased, unbiassed -- (without bias)