What are the opposite words for under-developments?

Antonyms for the word "under-developments" include "matureness," "progress," "improvement," and "advancement." While under-development often connotes a lack of growth or forward movement, these antonyms suggest the opposite - that progress and evolution have been made. A mature society, for instance, has advanced well past its initial stages and is now experiencing growth in a variety of ways. Similarly, an advanced economy may have seen significant improvements in technology, infrastructure, and other areas, leading to a more prosperous and productive society. Ultimately, these antonyms convey the idea of growth, progress, and development, and suggest that anything is possible with hard work and determination.

Antonym of the day

wert conscious of
criticize, decrease, depreciate.