Prop up and Undermine
Opposite meaning terms
Prop up
Prop up verb - To hold up or serve as a foundation for.
Undermine
Cite this Source
Undermine and Prop up. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/prop_up/undermine
Prop up & Undermine. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/prop_up/undermine>.
Undermine or Prop up. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/prop_up/undermine.
Google Ngram Viewer shows how "prop up" and "undermine" have occurred on timeline