Antediluvian and Improved

Opposite meaning words

Antediluvian adjective - Dating or surviving from the distant past.

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Improved is an antonym for antediluvian.

Improved adjective - Being far along in development.

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

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Antediluvian is an antonym for improved.

Cite this Source

Improved and Antediluvian. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/antediluvian/improved

Antediluvian & Improved. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/antediluvian/improved>.

Improved or Antediluvian. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/antediluvian/improved.

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