善ぜん性せいMeanings1nouninnate goodness; good naturePhilosophical term, often used in discussions of human nature, especially in Confucian or Mencian contexts. Refers to the inherent moral goodness of people.孟もう子しは人にん間げんの善ぜん性せいを説といた。Mencius argued for the innate goodness of human beings.