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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 So, why would Neanderthals carry a gene that potentially weakens muscle output? Jenny Lehmann, Discover Magazine, 18 July 2025 Even Echelon Insights, which has at times offered more favorable numbers for the president, showed his position weakening, with approval falling from -4 to -8 (45–53). Martha McHardy, MSNBC Newsweek, 18 July 2025 Such an unprecedented step could send the financial markets into a tailspin and over time push up interest rates and weaken the U.S. economy. Christopher Rugaber, Chicago Tribune, 18 July 2025 The first-quarter boom in U.S. trade is weakening, with merchandise trade somewhat atypically declining for the second straight month, according to my analysis of the the most recent U.S. Census Bureau data. Ken Roberts, Forbes.com, 9 July 2025 See All Example Sentences for weaken
Recent Examples of Synonyms for weaken
Verb
  • By then, Trump had softened his tariff stance and the markets had rebounded accordingly.
    Kate Plummer, MSNBC Newsweek, 14 July 2025
  • 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
Verb
  • The brand recommends avoiding dabbing or blotting after applying the spray, as this can cause the fragrance to break down and fade.
    Jennifer Hussein, Allure, 15 July 2025
  • The celestial trio will remain close to each other throughout the night, with Saturn and Neptune eventually fading from sight in the southern sky when the sun rises on July 16.
    Anthony Wood, Space.com, 15 July 2025
Verb
  • 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
  • Such critics are concerned that our approach might dilute the sense of urgency necessary and undermine public messaging.
    Francesco Rubino, Time, 9 July 2025
Verb
  • Shooting comes 3 years after another incident The July 25 shooting comes less than three years after another fatal attack at a University of New Mexico housing building left one student dead and three campus visitors injured.
    Karissa Waddick, USA Today, 25 July 2025
  • Newcastle insist Isak is injured and that a long-haul flight would not aid his recovery, but the rumour mill will only go into overdrive.
    Chris Waugh, New York Times, 24 July 2025
Verb
  • This reaction forms harmful compounds known as advanced glycation end products (AGEs), which can damage collagen fibers and potentially promote wrinkles and sagging skin.8 5.
    Lauren Panoff, Verywell Health, 25 July 2025
  • Unlike cheaper chairs at this price point (even the Snow Peak!), the mesh lets air flow through and conforms to your body without soaking or sagging.
    Chris Haslam, Wired News, 16 July 2025
Verb
  • On July 22, the hospital confirmed the patient died from the infection A child in South Carolina has died after being infected with a rare brain-eating amoeba, state health officials confirmed.
    Vanessa Etienne, People.com, 23 July 2025
  • In a study published July 22 in Nature Communications, researchers report that living through the pandemic aged our brains—whether or not you were infected with COVID-19.
    Alice Park, Time, 22 July 2025
Verb
  • Dry eye disease can be debilitating, Brocks stresses.
    Angela Haupt, Time, 21 July 2025
  • The virus was debilitating, a friend shared in a Facebook update after Caldwell's eighth round of chemotherapy.
    Cara Lynn Shultz, People.com, 20 July 2025
Verb
  • The agency failed to answer thousands of calls from flood survivors after allowing contracts for call-center workers to lapse one day after the disaster, according to The New York Times.
    Zoë Schlanger, The Atlantic, 15 July 2025
  • Last July, when the blade failed, foam fiberglass and other debris settled to the ocean floor, entered the water table and littered Nantucket beaches for months.
    Kenneth R. Gosselin, Hartford Courant, 15 July 2025

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Cite this Entry

“Weaken.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/weaken. Accessed 29 Jul. 2025.

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