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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 Conditions are favorable for the development of weak, brief funnel clouds. Ca Weather Bot, Sacbee.com, 4 Oct. 2025 But crop prices have been weak for most of the past decade except for brief a spike during the pandemic, according to the Minneapolis Fed. Jason Ma, Fortune, 4 Oct. 2025 In the first half of 2025, private-equity funds globally raised about $384 billion, down 17% from the same period last year — their weakest first-half total since the pandemic year of 2020. Lee Ying Shan, CNBC, 3 Oct. 2025 Many legal experts felt Trump’s case was weak on its merits. Brian Steinberg, Variety, 3 Oct. 2025 See All Example Sentences for weak
Recent Examples of Synonyms for weak
Adjective
  • The Basil Pesto Bowtie Salad and Smoked Mozzarella Penne Salad may be contaminated by bacteria listeria monocytogenes, which can cause fatal infections in children, the elderly and those with weakened immune systems, according to a news release from Kroger.
    Matthew Cupelli, Cincinnati Enquirer, 4 Oct. 2025
  • Listeria infection, or listeriosis, is most likely to sicken pregnant people and newborns, adults over 65 and people with weakened immune systems.
    Rachel Treisman, NPR, 30 Sep. 2025
Adjective
  • Take the front row, for example, where Russell was fitted with medium tires and Verstappen was on soft tires.
    Madeline Coleman, New York Times, 7 Oct. 2025
  • These unique washcloths only need water to remove makeup like foundation, concealer, and blush, and are soft and gentle enough to wipe away stubborn mascara, eyeliner, and eyeshadow around the delicate eye area.
    Alicia Geigel, Southern Living, 7 Oct. 2025
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.
    CA Weather Bot, Sacbee.com, 3 Oct. 2025
  • Batteries without the filter lost power quickly, while batteries with the atom-thin filter retained almost all their capacity for more than 150 charge-discharge cycles.
    Sujita Sinha, Interesting Engineering, 2 Oct. 2025
Adjective
  • Republicans argue that Democrats are making unreasonable demands on a stopgap bill that historically has served as a narrow, short-term bridge.
    Nik Popli, Time, 29 Sep. 2025
  • Vice President Vance, meanwhile, accused Democrats of making unreasonable demands.
    The Hill staff, The Hill, 29 Sep. 2025
Adjective
  • This is obvious enough in the contrast between the aggressive takedown in humor and the helpless surrender in tears.
    Big Think, Big Think, 23 Sep. 2025
  • The series also starred Portia de Rossi as the family's layabout daughter, Lindsay; David Cross as her aspiring actor husband, Tobias; Alia Shawkat as their teen daughter, Maeby; Jessica Walter as the family's elitist matriarch, Lucille; and Tony Hale as the dynasty's helpless youngest son, Buster.
    Wesley Stenzel, Entertainment Weekly, 22 Sep. 2025
Adjective
  • This is a good spot for them, though, as Josh Allen will have a lot of time against a feeble Patriots pass rush, and some people might think the Patriots’ 42-13 win over the Panthers actually means something.
    Vic Tafur, New York Times, 2 Oct. 2025
  • In this scheme, free will was feeble, and sin could be blamed on dark forces inhabiting the body.
    Shai Tubali, Big Think, 30 Sep. 2025
Adjective
  • Listeria monocytogenes is an organism which can cause serious and sometimes fatal infections in young children, frail or elderly people and others with weakened immune systems.
    City News Service, Oc Register, 27 Sep. 2025
  • Today’s over-85 cohort may also be frailer and sicker than the oldest-old were 30 years ago, Gill added, because contemporary medicine can keep people alive longer.
    Paula Span, Miami Herald, 25 Sep. 2025
Adjective
  • For example, Wilson’s team is exploring whether dilute acids speed up weathering.
    Robert F. Service, Science | AAAS, 3 Sep. 2020
  • The company reported a net loss during the first quarter of $3.9 million, or 11 cents diluted loss per share, compared to a net income of $4.3 million, or 12 cents dilute earnings per share over the same period last year.
    Paul Takahashi, Houston Chronicle, 5 June 2018

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Cite this Entry

“Weak.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/weak. Accessed 7 Oct. 2025.

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