Buck up and Undermine

Opposite meaning terms

Buck up verb - To fill with courage or strength of purpose.

Usage example: a surprise presidential visit to buck up the troops

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Undermine is an antonym for buck up.

Undermine verb - Destroy property or hinder normal operations.

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Buck up is an antonym for undermine.

Nearby Word: undermining

Cite this Source

Undermine and Buck up. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/buck_up/undermine

Buck up & Undermine. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/buck_up/undermine>.

Undermine or Buck up. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/buck_up/undermine.

Google Ngram Viewer shows how "buck up" and "undermine" have occurred on timeline