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 types of dietary fiber: soluble and insoluble, experts said.
—
Kristen Rogers, CNN Money, 26 July 2025
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
See All Example Sentences for insoluble
Kristen Rogers, CNN Money, 26 July 2025
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
See All Example Sentences for insoluble
Recent Examples of Synonyms for insoluble
Adjective
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Rather interestingly, instead of making off with the loot, the hackers sent the proceeds to addresses with no owners, effectively destroying the value and making recovery impossible, in order to emphasise the political, rather than financial, nature of the raid.—
David G.W. Birch,
Forbes.com,
25 Aug. 2025
-
The hedge is an acceptance that the world is impossible to know accurately.—
Zach Helfand,
New Yorker,
25 Aug. 2025
Adjective
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You? Consider these numbers: 44% report feeling persistently hopeless.—
Todd Nordstrom,
Forbes.com,
20 Aug. 2025
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Needless to say, that sounds like a good fit for the rather hopeless Battlestar Galactica universe.—
Fran Ruiz,
Space.com,
20 Aug. 2025
Cite this Entry
“Insoluble.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insoluble. Accessed 3 Sep. 2025.
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