Ripen
Mature, Ripeness, Maturity
noun, verbal noun, の adjective
To become ripe(n) is to ripen and mature.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
成熟した女性の脳と成熟した男性の脳の相違点について、論文を書いています。
I’m writing a paper about the differences between the mature female brain and the mature male brain.
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up what ever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.