Definition of weakennext
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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 First, the skull weakens and distorts sound waves. Kurt Knutsson, FOXNews.com, 2 Mar. 2026 The labor market did in fact weaken over the past year or so —and the official numbers confirmed it. Jill Schlesinger, Mercury News, 2 Mar. 2026 Unions argue that the law will weaken the workers’ protections that have defined Argentina since the rise of Peronism, the country’s dominant populist political movement, in the 1940s. ABC News, 2 Mar. 2026 If audience trust has now weakened, even slightly, the consequences will come in stages. Alison Foreman, IndieWire, 2 Mar. 2026 See All Example Sentences for weaken
Recent Examples of Synonyms for weaken
Verb
  • Impersonal Surroundings Hard floors, bare walls, and furnishings that do nothing to soften the space can create a home office that feels anything but welcoming.
    Patricia Shannon, Better Homes & Gardens, 4 Mar. 2026
  • What could have been a biting portrait of the glorification of female beauty is softened by a simple happy ending—in a world where no ending can possibly be simple, whether happy or not.
    Sarah Chihaya, New Yorker, 3 Mar. 2026
Verb
  • Three days later, Litmus Test faded to third place in his first start of the year, the Rebel Stakes at Oaklawn Park in Arkansas.
    Jay Posner, Los Angeles Times, 7 Mar. 2026
  • What sympathy there may have been for a cornered, bruised Iranian regime among its neighbors has faded in the face of Tehran’s escalation.
    Ishaan Tharoor, New Yorker, 6 Mar. 2026
Verb
  • Racist revelations aside, Von Dutch also suffered from its own success; those ubiquitous trucker hats diluted the brand and triggered market fatigue, while internal infighting between investors and executives stalled corporate growth.
    Alexandra Harrell, Sourcing Journal, 6 Mar. 2026
  • While most vegetables contain 80 to 90 percent water, overwatering adds too much moisture and dilutes the flavor of the harvest.
    Mary Marlowe Leverette, The Spruce, 4 Mar. 2026
Verb
  • Reaves injured his arm late in the fourth quarter after stripping the basketball away from Williamson.
    Broderick Turner, Los Angeles Times, 4 Mar. 2026
  • Over the course of just one minute, the gunman sailed down the city’s bustling Sixth Street and then exited his car, firing off even more bullets, ultimately killing three people and injuring 13 others before he was fatally shot by police.
    Elizabeth Wolfe, CNN Money, 3 Mar. 2026
Verb
  • There can be sagging along the lower face or the development of jowls.
    Elizabeth Gulino, Allure, 6 Mar. 2026
  • In fall 2023, the company laid off an undisclosed number of workers and a few months later furloughed many of the workers at its massive Jackson County plant as part of efforts to cut production to match the sagging demand for electric vehicles.
    Mirtha Donastorg, AJC.com, 6 Mar. 2026
Verb
  • Many people and animals remain asymptomatic when they’re infected.
    Susanne Rust Follow, Los Angeles Times, 6 Mar. 2026
  • In a statement, Bis claimed medical staff were quarantining all detainees that may have come into contact with those infected.
    Laura Romero, ABC News, 5 Mar. 2026
Verb
  • What should state leaders do when a lucrative industry generating some $9 billion in gross sales is linked to a rise in a painful, often debilitating medical condition?
    Boston Herald editorial staff, Boston Herald, 3 Mar. 2026
  • Hormonal chaos collides with maximum responsibility and minimum infrastructure, and what used to be manageable becomes debilitating.
    Sarah Oreck, SELF, 2 Mar. 2026
Verb
  • The Ducks improved to 8-0 in shootouts this season despite going just two for six against Montreal, with even Mason McTavish failing to score for the first time in six tries this season.
    Los Angeles Times, Los Angeles Times, 7 Mar. 2026
  • Doctors had little to offer Reid beyond steroids, which reduce inflammation but can cause bone fractures and diabetes, and a select few immunosuppressant drugs, which expose patients to infections and often fail to halt the disease’s progression.
    Jason Liebowitz, New Yorker, 6 Mar. 2026

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Cite this Entry

“Weaken.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/weaken. Accessed 10 Mar. 2026.

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