mature; maturity
A complimentary term for wine that’s perfectly developed, aged, and ready to drink—it’s not too young, and it’s not headed over the hill.
The New Wine Lovers Companion, 2nd Edition, by Ron Herbst and Sharon Tyler Herbst. Copyright © (1) 2003, 1995 by Ron Herbst and Sharon Tyler Herbst. Reprinted by arrangement with Barron's Educational Series, Inc.