noun
Abstract noun referring to the quality of being fair, just, or impartial. Often used in formal or evaluative contexts such as journalism, law, or organizational policy.
報道には公正性が求められる。
Fairness is required in news reporting.
審査の公正性を疑
Voices were raised questioning the fairness of the judging.
公正 is a na-adjective/noun meaning fair or just. 公正性 adds the suffix 性 to turn it into an abstract noun focusing on the quality or property of being fair.
Compound of 公正 (fair, just) + 性 (nature, quality). The suffix 性 is commonly used to form abstract nouns expressing a property or characteristic.