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
Whole foods rich in both soluble and insoluble fiber include oats, prunes, kiwis, legumes, leafy vegetables, pears and whole grains.
—
Daryl Austin, USA Today, 6 Sep. 2025
Chia seeds provide both soluble and insoluble fiber, plus protein, omega-3 fats, and minerals.
—Morgan Pearson, Verywell Health, 22 Aug. 2025
Just one cup has over 11 grams of both soluble and insoluble fiber.
—Ashia Aubourg, Outside, 16 Aug. 2025
Resolution of this tragic dynamic appears insoluble.
—David Marks, The Orlando Sentinel, 8 Aug. 2025
See All Example Sentences for insoluble
Daryl Austin, USA Today, 6 Sep. 2025
Chia seeds provide both soluble and insoluble fiber, plus protein, omega-3 fats, and minerals.
—Morgan Pearson, Verywell Health, 22 Aug. 2025
Just one cup has over 11 grams of both soluble and insoluble fiber.
—Ashia Aubourg, Outside, 16 Aug. 2025
Resolution of this tragic dynamic appears insoluble.
—David Marks, The Orlando Sentinel, 8 Aug. 2025
See All Example Sentences for insoluble
Recent Examples of Synonyms for insoluble
Adjective
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The bulbous eyes at the vamp made the frogs impossible to miss against the casual layers.—
Maggie Clancy,
Footwear News,
3 Oct. 2025
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Millennials and Gen Z are clamoring to break into the housing market—a feat seemingly impossible in an inflationary period with high home prices and mortgage rates.—
Sydney Lake,
Fortune,
3 Oct. 2025
Adjective
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The bubble-ists think that the Coreweave people are hopeless dreamers at best and shysters at worst.—
Jim Cramer,
CNBC,
28 Sep. 2025
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Since then, the song has been yearned for by hopeless romantics on TikTok, with videos featuring the song racking up millions of views, similar to the ones Iris posted herself.—
Alejandra Gularte,
Vulture,
27 Sep. 2025
Cite this Entry
“Insoluble.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insoluble. Accessed 8 Oct. 2025.
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