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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Example Sentences
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Recent Examples of insoluble
Oats are an abundant source of prebiotics and soluble and insoluble fibers, all of which support digestive health.
—
Amy Brownstein, Verywell Health, 23 July 2025
But what makes Tetris Attack superior is its two-player mode, where clearing your board drops massive payloads of insoluble junk on your rival.
—Luke Winkie, Vulture, 18 June 2025
However, some may want to consume more insoluble fiber depending on their symptoms.
—Akshay Syal, NBC news, 31 May 2025
Suddenly, a midfield that had felt like an insoluble jigsaw puzzle clicked into place; Tonali, Guimaraes and Joelinton were athletic, creative, rampaging, brilliant.
—George Caulkin, New York Times, 29 May 2025
See All Example Sentences for insoluble
Amy Brownstein, Verywell Health, 23 July 2025
But what makes Tetris Attack superior is its two-player mode, where clearing your board drops massive payloads of insoluble junk on your rival.
—Luke Winkie, Vulture, 18 June 2025
However, some may want to consume more insoluble fiber depending on their symptoms.
—Akshay Syal, NBC news, 31 May 2025
Suddenly, a midfield that had felt like an insoluble jigsaw puzzle clicked into place; Tonali, Guimaraes and Joelinton were athletic, creative, rampaging, brilliant.
—George Caulkin, New York Times, 29 May 2025
See All Example Sentences for insoluble
Recent Examples of Synonyms for insoluble
Adjective
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That suggests 2014 may have been a tipping point beyond which returning to normal wet-dry cycles may be impossible on human timescales.—
Mark Gongloff,
Mercury News,
13 Aug. 2025
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Humanity Protocol, valued at over a billion dollars, uses palm scans to confirm identity so impersonation becomes almost impossible.—
Dr. Diane Hamilton,
Forbes.com,
13 Aug. 2025
Adjective
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Measures included depression using the Center for Epidemiological Studies Depression scale (CES-D), blood tests for 76 inflammatory biomarkers, and symptoms broken down into cognitive-affective (e.g., feeling hopeless), somatic (e.g., poor sleep, fatigue), and anhedonia (loss of pleasure) clusters.—
Paul McClure
August 09,
New Atlas,
9 Aug. 2025
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Amid the callous acts and hopeless rage of these kids—who are resourceful enough to orchestrate a high-speed heist but too disaffected for much else—a supernatural eeriness surfaces through word of mysterious lights in the sky and missing citizens.—
Christian Zilko,
IndieWire,
7 Aug. 2025
Cite this Entry
“Insoluble.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insoluble. Accessed 20 Aug. 2025.
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