Definition of weaknext
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as in thin
not containing very much of some important element the coffee came out too weak because I didn't use enough ground beans

Synonyms & Similar Words

Antonyms & Near Antonyms

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Synonym Chooser

How does the adjective weak contrast with its synonyms?

Some common synonyms of weak are decrepit, feeble, fragile, frail, and infirm. While all these words mean "not strong enough to endure strain, pressure, or strenuous effort," weak applies to deficiency or inferiority in strength or power of any sort.

felt weak after the surgery

When is it sensible to use decrepit instead of weak?

The synonyms decrepit and weak are sometimes interchangeable, but decrepit implies being worn-out or broken-down from long use or old age.

the dowager's decrepit retainers

In what contexts can feeble take the place of weak?

Although the words feeble and weak have much in common, feeble suggests extreme weakness inviting pity or contempt.

a feeble attempt to walk

When might fragile be a better fit than weak?

While in some cases nearly identical to weak, fragile suggests frailty and brittleness unable to resist rough usage.

a reclusive poet too fragile for the rigors of this world

When is frail a more appropriate choice than weak?

The meanings of frail and weak largely overlap; however, frail implies delicacy and slightness of constitution or structure.

a frail teenager unable to enjoy sports

Where would infirm be a reasonable alternative to weak?

The words infirm and weak are synonyms, but do differ in nuance. Specifically, infirm suggests instability, unsoundness, and insecurity due to old age or crippling illness.

infirm residents requiring constant care

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 weak Although a weak yen raises the value of exports’ earnings when converted into yen, a boon for Japan’s giant exporters, that positive is starting to be countered by the big negative of rising energy prices. ABC News, 1 July 2026 The firm is on track to double its Gulf revenue this year despite the impact of the Iran war and weaker spending on consultants in Saudi Arabia, Colie Spink, A&M’s managing director and regional head for the Middle East, said in an interview. Matthew Martin, semafor.com, 1 July 2026 An agent operating on weak prediction models is just a faster way to spend badly. Phoena Pang, Forbes.com, 1 July 2026 In addition to the levee, men stood watch every 1,000 feet along the Missouri River from the Kaw to the Blue River to report weak spots in the flood wall or potential threats to the pumping station. Kansas City Public Library Staff, Kansas City Star, 1 July 2026 See All Example Sentences for weak
Recent Examples of Synonyms for weak
Adjective
  • The bacterium can also lead to hemolytic uremic syndrome (HUS), a serious complication that is more common in young children, older adults and people with weakened immune systems, according to the release.
    Chiara Kim, PEOPLE, 6 July 2026
  • While anyone can get sick, young children, older adults, pregnant women and people with weakened immune systems are more likely to become seriously ill.
    Tiffani Jackson, Fort Worth Star-Telegram, 3 July 2026
Adjective
  • Play soft music to drown out fireworks blasts and give your pet something to do, like putting treats inside an interactive toy, to keep them calm and happy.
    Sandra McDonald, Los Angeles Times, 3 July 2026
  • This relaxed pick is incredibly soft, really cute, and surprisingly easy to style.
    Annie Blackman, InStyle, 3 July 2026
Adjective
  • The water pressure then causes the vehicle to rise and slide on a thin layer of water between the tires and the road, making the driver lose control.
    STAR-TELEGRAM WEATHER BOT, Fort Worth Star-Telegram, 5 July 2026
  • Sprinkle the entire rug with a thin layer of baking soda and wait 20 minutes.
    Brandee Gruener, Southern Living, 5 July 2026
Adjective
  • If these requirements are not met, the search is unreasonable and therefore unlawful, and evidence obtained in that search cannot be used in court, barring a good-faith exception.
    Anne Toomey McKenna, The Conversation, 30 June 2026
  • Justices ruled that sweeping use of cellphone data requires a warrant, a decision applying the Fourth Amendment, which protects against unreasonable searches and seizures, to new technology.
    Josh Feldman, NBC news, 30 June 2026
Adjective
  • The leading interpretation is that Smilodon delivered a single precise bite to the throat or belly, severing something vital in a target that was already helpless.
    Scott Travers, Forbes.com, 1 July 2026
  • Pele controls the ball in the penalty area with his thigh, flips it over the head of the defender and smashes it past a helpless Kalle Svensson.
    Assistant Sports Editor, Los Angeles Times, 29 June 2026
Adjective
  • The gags are both belabored and feeble.
    Stephanie Zacharek, Time, 26 June 2026
  • Jolted by a feeble office market, a growing number of developers are considering ways to convert their office properties to other uses, such as housing projects.
    George Avalos, Mercury News, 17 June 2026
Adjective
  • The law had said medically frail people include those who have substance use disorders, disabilities or serious medical conditions.
    ABC News, ABC News, 29 June 2026
  • Roosevelt credits that experience with transforming him from a frail, nearsighted youth into a rugged individual who years later would become the 26th president and a pioneering conservationist.
    Joe Yogerst, CNN Money, 26 June 2026
Adjective
  • But dwarf galaxies are smaller and colder, with more dilute and slower-moving matter.
    Paul M. Sutter, Scientific American, 6 May 2026
  • Second, a dilute hydrochloric acid is used to dissolve the remaining lithium and the transition metals—nickel, cobalt, and manganese.
    Aman Tripathi, Interesting Engineering, 12 Oct. 2025

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Cite this Entry

“Weak.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/weak. Accessed 7 Jul. 2026.

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