Improved and Underdeveloped

Opposite meaning words

Improved adjective - Being far along in development.

Usage example: an improved version of the software is now available

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Underdeveloped is an antonym for improved.

Underdeveloped adjective - Not yet fully developed.

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Improved is an antonym for underdeveloped.

Cite this Source

Underdeveloped and Improved. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/improved/underdeveloped

Improved & Underdeveloped. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/improved/underdeveloped>.

Underdeveloped or Improved. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/improved/underdeveloped.

Google Ngram Viewer shows how "improved" and "underdeveloped" have occurred on timeline