undermine

verb

un·​der·​mine ˌən-dər-ˈmīn How to pronounce undermine (audio)
ˈən-dər-ˌmīn
undermined; undermining; undermines

transitive verb

1
: to subvert or weaken insidiously or secretly
trying to undermine his political rivals
2
: to weaken or ruin by degrees
3
: to wash away supporting material from under
4
: to excavate the earth beneath : form a mine under : sap
Choose the Right Synonym for undermine

weaken, enfeeble, debilitate, undermine, sap, disable mean to lose or cause to lose strength or vigor.

weaken may imply loss of physical strength, health, soundness, or stability or of quality, intensity, or effective power.

a disease that weakens the body's defenses

enfeeble implies a condition of marked weakness and helplessness.

enfeebled by starvation

debilitate suggests a less marked or more temporary impairment of strength or vitality.

the debilitating effects of surgery

undermine and sap suggest a weakening by something working surreptitiously and insidiously.

a poor diet undermines your health
drugs had sapped his ability to think

disable suggests bringing about impairment or limitation in a physical or mental ability.

disabled by an injury sustained at work

Examples of undermine in a Sentence

She tried to undermine my authority by complaining about me to my boss. The events of the past year have undermined people's confidence in the government.
Recent Examples on the Web Yet the Modi-fication of India could undermine the U.S. and its allies’ interests. Michael Kugelman, TIME, 19 Apr. 2024 New scientific papers are undermining some of the flashier claims about the tech’s capabilities. Gerrit De Vynck, Washington Post, 18 Apr. 2024 The German Federal Prosecutor's office said in a statement that two German-Russian nationals — named only as Dieter S. and Alexander J. in line with the country's privacy rules — were working with a Russian secret service agent to undermine international military support for Ukraine. Carlo Angerer, NBC News, 18 Apr. 2024 Over the past decade, medical research has consistently demonstrated that the most relied upon medical device, the stethoscope, has the same contamination, and transmission as unwashed hands, undermining hand hygiene efforts in healthcare delivery. Chris Gallagher, USA TODAY, 18 Apr. 2024 Still, other supporters of the legislation rejected the notion that action against TikTok would undermine the United States on internet policy. David McCabe, New York Times, 17 Apr. 2024 Tokyo is sending a strong message to Beijing: there will be costs to any actions that undermine Japan’s national interest. Tomohiko Taniguchi, Foreign Affairs, 16 Apr. 2024 Every solar farm in California is undermined by every ton of coal burned at Colstrip. Sammy Roth, Los Angeles Times, 16 Apr. 2024 The lawsuit would allege that Live Nation’s concert promotion and ticketing operations have undermined competition in the live music market, The Journal reports, citing sources familiar with the matter. Jazz Monroe, Pitchfork, 16 Apr. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'undermine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

14th century, in the meaning defined at sense 4

Time Traveler
The first known use of undermine was in the 14th century

Dictionary Entries Near undermine

Cite this Entry

“Undermine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undermine. Accessed 23 Apr. 2024.

Kids Definition

undermine

verb
un·​der·​mine ˌən-dər-ˈmīn How to pronounce undermine (audio)
1
: to dig out or wear away the earth beneath
undermine a wall
2
: to weaken or ruin secretly or gradually
undermine a government
Last Updated: - Updated example sentences
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