insoluble
adjective
in·sol·u·ble
(ˌ)in-ˈsäl-yə-bəl 
: not soluble: such as
a
: incapable of being dissolved in a liquid and especially water
also
: soluble only with difficulty or to a slight degree
b
: having or admitting of no solution or explanation
an insoluble problem
c
archaic
: indissoluble
insoluble
noun
Examples of insoluble in a Sentence
a substance insoluble in water
the seemingly insoluble mystery concerning the identity of the people who built these ancient structures
Recent Examples on the Web
While quinoa and buckwheat aren’t technically grains, they often get grouped together and provide fiber profiles similar to those of fruits and vegetables, offering soluble and insoluble fiber.
—
Morgan Pearson, Verywell Health, 10 July 2025
Whole foods also tend to contain a combination of both soluble and insoluble fiber.
—Perri Ormont Blumberg, Time, 5 June 2025
It’s commonly broken down into two categories, soluble and insoluble fiber.
—Akshay Syal, NBC news, 31 May 2025
Beans are also loaded with both soluble and insoluble fiber, a duo that’s a game-changer for digestive health.
—Dr. Kelly Fradin, CNBC, 20 May 2025
See All Example Sentences for insoluble
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Morgan Pearson, Verywell Health, 10 July 2025
Whole foods also tend to contain a combination of both soluble and insoluble fiber.
—Perri Ormont Blumberg, Time, 5 June 2025
It’s commonly broken down into two categories, soluble and insoluble fiber.
—Akshay Syal, NBC news, 31 May 2025
Beans are also loaded with both soluble and insoluble fiber, a duo that’s a game-changer for digestive health.
—Dr. Kelly Fradin, CNBC, 20 May 2025
See All Example Sentences for insoluble
Cite this Entry
“Insoluble.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insoluble. Accessed 19 Jul. 2025.
Copy CitationKids Definition
insoluble
adjective
in·sol·u·ble
(ˈ)in-ˈsäl-yə-bəl
1
: impossible to solve
an insoluble problem
2
: impossible or difficult to dissolve
a substance insoluble in water
Medical Definition
insoluble
adjective
in·sol·u·ble
(ˈ)in-ˈsäl-yə-bəl
: incapable of being dissolved in a liquid
also
: soluble only with difficulty or to a slight degree
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