as in impossible
incapable of being solved or accomplished
the seemingly insoluble mystery concerning the identity of the people who built these ancient structures
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Recent Examples of insoluble
There are two general forms: soluble (which comes from the inner flesh of plants and dissolves in water) and insoluble (which generally comes from the skin of plants and does not dissolve in water).
—
Julie Stewart, SELF, 25 Mar. 2025
Soluble fiber slows digestion to allow for better absorption of nutrients, while insoluble fiber adds bulk to the stool, which helps prevent constipation.
—Sarah Scott, Verywell Health, 31 Mar. 2025
The legumes contain both kinds of fiber—soluble and insoluble.
—Sarah Scott, Verywell Health, 31 Mar. 2025
Soluble and insoluble fibers help promote regular bowel movements.
—Larell Scardelli, Verywell Health, 5 Mar. 2025
See All Example Sentences for insoluble
Julie Stewart, SELF, 25 Mar. 2025
Soluble fiber slows digestion to allow for better absorption of nutrients, while insoluble fiber adds bulk to the stool, which helps prevent constipation.
—Sarah Scott, Verywell Health, 31 Mar. 2025
The legumes contain both kinds of fiber—soluble and insoluble.
—Sarah Scott, Verywell Health, 31 Mar. 2025
Soluble and insoluble fibers help promote regular bowel movements.
—Larell Scardelli, Verywell Health, 5 Mar. 2025
See All Example Sentences for insoluble
Recent Examples of Synonyms for insoluble
Adjective
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Cadence customer MediaTek even said that the M2000 enabled previously impossible simulations for dynamic IR, while customer Supermicro said the M2000 delivered 8x faster thermal simulations for its server designs.—
Anshel Sag,
Forbes.com,
13 June 2025
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Yet enforcement was impossible, for there was no way to track down absent and delinquent fathers.—
Augustine Sedgewick,
Time,
13 June 2025
Adjective
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Those who are convinced they’re trapped stay helpless and hopeless.—
Amy Morin,
CNBC,
12 June 2025
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In a world where the powerful increasingly act with impunity, taking fictional villains to task makes sense, a form of Hollywood wish fulfillment for those who feel stuck or hopeless.—
Whitney Friedlander,
Los Angeles Times,
11 June 2025
Cite this Entry
“Insoluble.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insoluble. Accessed 18 Jun. 2025.
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