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Synonym Chooser

How is the word weaken distinct from other similar verbs?

Some common synonyms of weaken are cripple, debilitate, disable, enfeeble, sap, and undermine. While all these words 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

When would cripple be a good substitute for weaken?

While in some cases nearly identical to weaken, cripple implies causing a serious loss of functioning power through damaging or removing an essential part or element.

crippled by arthritis

Where would debilitate be a reasonable alternative to weaken?

The words debilitate and weaken can be used in similar contexts, but debilitate suggests a less marked or more temporary impairment of strength or vitality.

the debilitating effects of surgery

When could disable be used to replace weaken?

While the synonyms disable and weaken are close in meaning, disable suggests bringing about impairment or limitation in a physical or mental ability.

disabled by an injury sustained at work

When might enfeeble be a better fit than weaken?

The synonyms enfeeble and weaken are sometimes interchangeable, but enfeeble implies a condition of marked weakness and helplessness.

enfeebled by starvation

How are the words undermine and sap related as synonyms of weaken?

Both 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

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of weaken The storm will then track northeast over North Carolina and southeastern Virginia before weakening by Sunday afternoon. Adeola Adeosun, MSNBC Newsweek, 5 July 2025 Regular laundry detergents may clean well, but their stronger chemicals can weaken swimwear over time. Gabi De La Rosa, Southern Living, 5 July 2025 Israel’s early use of uncrewed weapons systems to weaken Iran’s air defense reduced the monetary and human risks in the event that the initial attack failed and the drones were shot down. Michael C. Horowitz, Foreign Affairs, 4 July 2025 The decision by Washington to halt some shipments of critical weapons to Ukraine prompted warnings by Kyiv that the move would weaken its ability to defend against intensifying airstrikes and battlefield advances. Pavel Polityuk, USA Today, 4 July 2025 See All Example Sentences for weaken
Recent Examples of Synonyms for weaken
Verb
  • On the campaign trail, the president spent time courting faith leaders throughout the country, often refusing to soften his language in those venues as well.
    Lalee Ibssa, ABC News, 14 July 2025
  • By then, Trump had softened his tariff stance and the markets had rebounded accordingly.
    Kate Plummer, MSNBC Newsweek, 14 July 2025
Verb
  • Sunscreen, chlorine, saltwater, and even rough drying habits can wear down the fabric, leaving colors faded and suits stretched out.
    Gabi De la Rosa, Southern Living, 5 July 2025
  • The spark seemed to fade, then the extra effort went AWOL.
    Jodie Cook, Forbes.com, 4 July 2025
Verb
  • Such critics are concerned that our approach might dilute the sense of urgency necessary and undermine public messaging.
    Francesco Rubino, Time, 9 July 2025
  • Fill the glass with ice, and repeat with the other glass. 3: Fill a cocktail shaker with ice, stir together the Earl Grey simple syrup, lime juice and smoked paprika until thoroughly chilled and diluted, about 15 seconds.
    The Washington Post, San Diego Union-Tribune, 9 July 2025
Verb
  • Three people were injured after being struck by lightning in a popular summer beach getaway town on Saturday night.
    Peter D'Abrosca, FOXNews.com, 13 July 2025
  • Thirty-nine members of the battalion were killed in October, 1917, and a hundred and thirty-five were injured.
    Ed Caesar, New Yorker, 13 July 2025
Verb
  • Then there’s the reverse extreme: nipple reduction — long, protruding, often sagging nipples that are the consequence of breastfeeding.
    Gary Baum, HollywoodReporter, 16 June 2025
  • The vinyl rain gutter sagged and melted, its plastic material flapping in the wind like a flag, and the window shattered shortly after, letting the flames enter the interior.
    Jack Flemming, Los Angeles Times, 11 June 2025
Verb
  • Investigators said one of the patients, an 18-year-old, likely became infected about six days before his first doctor’s visit when he was bitten by fleas while walking through a prairie dog colony in Navajo County, about 103 miles east of Flagstaff, Arizona.
    Saleen Martin, USA Today, 11 July 2025
  • Season 2 of The Last of Us finds Joel (Pedro Pascal) not only fending off humans infected with the Cordyceps virus, but other survivors seeking revenge on Joel for his past actions.
    Tim Lammers, Forbes.com, 11 July 2025
Verb
  • An estimated 40,000 Americans are treated annually for recurrent pericarditis, a severe and debilitating chronic autoinflammatory disease.
    Beth Warren, The Tennessean, 2 July 2025
  • Campbell was nominated by Austin Palliative Care, which helps people who have debilitating chronic diseases.
    Nicole Villalpando, Austin American Statesman, 2 July 2025
Verb
  • Lin, its inventor, was born in 1895 in southern China during the tail end of a failing Qing dynasty.
    Emily Feng, NPR, 5 July 2025
  • According to court documents obtained by the Charlotte Observer, the office found the commission failed to provide the bar with sufficient notice within five days of a April 30 deadline as required by the new statute before canceling the business’s ABC permits.
    Nora O’Neill July 5, Charlotte Observer, 5 July 2025

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Cite this Entry

“Weaken.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/weaken. Accessed 19 Jul. 2025.

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