Fixed and Undermined
Opposite meaning words
Fixed
Fixed adjective - Having been established and usually not subject to change.
Undermined is an antonym for fixed.
Undermined
Cite this Source
Undermined and Fixed. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/fixed/undermined
Fixed & Undermined. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/fixed/undermined>.
Undermined or Fixed. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/fixed/undermined.
Google Ngram Viewer shows how "fixed" and "undermined" have occurred on timeline