How to say "fairness" in Japanese

Choosing the right word
  • 公平こうへいJLPT N3approx.Common
    noun, na-adjectiveCovers fairness as even-handed, unbiased treatment of people. The everyday word for saying a rule, decision, or person treats everyone equally and gives no one an unfair advantage.
  • 公明こうめいCommon
    noun, na-adjectiveMeans fairness together with openness or transparency, especially in official or public conduct. As a way to say plain 'fairness' it is marginal; it really points to impartiality practiced openly.
  • 公正こうせいJLPT N2approx.Common
    noun, na-adjectiveCovers fairness as impartiality grounded in justice, often for judgments, evaluations, or procedures by authorities or third parties. Slightly formal, emphasizing that a decision is just and free of favoritism.
    王おうは自分じぶんの王国おうこくを公正こうせいに治おさめた。↗
    The king ruled his kingdom justly.

Use 公平 for even-handed treatment without bias, 公正 for impartial justice as a principle or evaluation, and 公明 mainly for openness and transparency in official conduct rather than fairness itself.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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