What does 成熟 mean?
成熟 is a Japanese noun meaning “maturity, ripeness” in English. It is written as 成熟 in kanji, せいじゅく in hiragana, and seijuku in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
進んで責任を取るということは成熟の印である。
Willingness to take responsibility is a sign of maturity.