What does 性質 mean?
性質 is a Japanese noun meaning “nature, property, disposition” in English. It can also be translated as “quality” depending on context. It is written as 性質 in kanji, せいしつ in hiragana, and seishitsu in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
彼は性質が頑固だ。
He is obstinate in disposition.