budding:
dying,
shrinking,
withering.
first:
final,
last.
incipient:
developed,
grown,
mature.
initial:
closing.
introductory:
concluding,
ending,
finishing.
undeveloped:
adult.
noun:
improved,
developed,
mature,
later,
ripened,
late,
ripe,
full-blown,
advanced,
higher,
full-fledged,
high,
Evolved,
refined, adult.