noun, na-adjective
Refers to a lack of fairness or justice in treatment, rules, or systems. Used as both a noun and a na-adjective.
その判決は不公正だと思う。
I think that ruling is unjust.
不公正な取引は法律で禁じられている。
Unfair transactions are prohibited by law.
公正 means fairness or justice; 不公正 is its direct antonym.
Formed from 不 (prefix meaning 'not') + 公正 (fairness, justice).