English

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Etymology

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From hyper- +‎ partisan.

Adjective

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hyperpartisan (comparative more hyperpartisan, superlative most hyperpartisan)

  1. Extremely partisan; extremely biased in favor of a political party.
  2. Sharply polarized by political parties in fierce disagreement with each other.

Noun

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hyperpartisan (plural hyperpartisans)

  1. An extreme political partisan.