Improved upon antonyms

What is the opposite word for Improved upon?

Antonyms for improved upon
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Cite this Source
Antonyms for Improved upon. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/antonyms/improved_upon
Antonyms for Improved upon. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/antonyms/improved_upon>.
Antonyms for Improved upon. 2016. Accessed July 21, 2026. https://thesaurus.plus/antonyms/improved_upon.