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
Supports Digestion Okra contains soluble and insoluble fiber that supports digestive health.
—
Cristina Mutchler, Verywell Health, 21 May 2025
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
See All Example Sentences for insoluble
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Cristina Mutchler, Verywell Health, 21 May 2025
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
See All Example Sentences for insoluble
Cite this Entry
“Insoluble.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insoluble. Accessed 11 Jun. 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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