in·​sol·​u·​ble | \ (ˌ)in-ˈsäl-yə-bəl How to pronounce insoluble (audio) \

Definition of insoluble

: 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

Other Words from insoluble

insolubility \ (ˌ)in-​ˌsäl-​yə-​ˈbi-​lə-​tē How to pronounce insoluble (audio) \ noun
insoluble noun
insolubleness \ (ˌ)in-​ˈsäl-​yə-​bəl-​nəs How to pronounce insoluble (audio) \ noun
insolubly \ (ˌ)in-​ˈsäl-​yə-​blē How to pronounce insoluble (audio) \ adverb

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 Specifically, most of the fiber in pomegranates is insoluble fiber. Good Housekeeping, 16 Sep. 2022 But TiO2 is insoluble in water – meaning that it cannot be dissolved into smaller particles. Dr. Michael Daignault, USA TODAY, 12 Aug. 2022 Kidney beans also provide insoluble fibers called alpha-galactosides, whose side effects are the inspiration for that old childhood rhyme about beans. Cate Geiger Kalus, Country Living, 8 Aug. 2022 Caladiums contain insoluble calcium oxalates, which are toxic if consumed. Terri Robertson, Country Living, 1 Aug. 2022 Today, once again, Northern Ireland is back in crisis, stuck with an insoluble constitutional dilemma caused by Brexit in which everyone claims the Good Friday Agreement as proof of the righteousness of their side. Tom Mctague, The Atlantic, 26 July 2022 Since 1988, when the late King Hussein of Jordan renounced his country’s sovereignty claims in favor of the Palestine Liberation Organization (PLO), the West Bank has presented Jordan with an insoluble conundrum. Shlomo Ben-ami, WSJ, 9 June 2022 The bulk provided by insoluble fiber and water-holding properties of soluble fiber can also enhance feelings of fullness. Marygrace Taylor, SELF, 30 Apr. 2022 Enter uranium oxide, an insoluble and thermally stable source of uranium that doesn’t conduct electricity. Courtney Linder, Popular Mechanics, 16 May 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'insoluble.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of insoluble

14th century, in the meaning defined above

History and Etymology for insoluble

Middle English insolible, from Latin insolubilis, from in- + solvere to free, dissolve — more at solve

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Time Traveler for insoluble

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The first known use of insoluble was in the 14th century

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Last Updated

27 Sep 2022

Cite this Entry

“Insoluble.” Dictionary, Merriam-Webster, Accessed 3 Oct. 2022.

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More Definitions for insoluble


in·​sol·​u·​ble | \ in-ˈsäl-yə-bəl How to pronounce insoluble (audio) \

Kids Definition of insoluble

1 : having no solution or explanation an insoluble problem
2 : difficult or impossible to dissolve insoluble in water


in·​sol·​u·​ble | \ (ˈ)in-ˈsäl-yə-bəl How to pronounce insoluble (audio) \

Medical Definition of insoluble

: incapable of being dissolved in a liquid also : soluble only with difficulty or to a slight degree

More from Merriam-Webster on insoluble

Nglish: Translation of insoluble for Spanish Speakers


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