the.com/mature
The art of knowing better, occasionally doing better, and rarely admitting either out loud.
means Fully developed, whether a person, a cheese, a bond, or a decision made without slamming a door.
from From Latin maturus, ripe or timely, the same root that gives us matins, the morning prayer at the day's ripening.
FinanceA bond matures when it finally pays up.
CheeseAging adds flavor, decay adds penicillin.
EuphemismFilms labeled mature are rarely about wisdom.