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

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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 Using a powerful blender (such as a Vitamix) to puree the mixture will eliminate the need to strain, saving on cleanup and retaining more insoluble fiber. Rachel Boller,, 18 Apr. 2021 That's because when Zemo invented the insoluble Adhesive X, Cap and Bucky destroyed his lab, accidentally gluing Zemo's purple mask to his face permanently. Andrew A. Smith Tribune News Service, Star Tribune, 12 Apr. 2021 Her quest to solve a mystery that may be insoluble is the thread that holds the beads of her life, the lost love and the mundane job as well as moments of wonder and exciting discoveries. Jim Higgins, Milwaukee Journal Sentinel, 12 Apr. 2021 On early Earth, this chemical element was locked inside insoluble minerals. NBC News, 16 Mar. 2021 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, 30 Mar. 2021 But the clip became a sound bite—evidence, for the wider world, of Irving’s insoluble weirdness. Hua Hsu, The New Yorker, 29 Mar. 2021 Sweet potatoes contain fiber (both soluble and insoluble) and antioxidants that are beneficial to overall gut health and digestion. Rachel Boller,, 23 Mar. 2021 Legumes and beans are also great sources of both soluble and insoluble fiber. Madelyn Fernstrom, NBC News, 24 Feb. 2021

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.

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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

Time Traveler

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

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Last Updated

23 Jun 2021

Cite this Entry

“Insoluble.” Dictionary, Merriam-Webster, Accessed 1 Aug. 2021.

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More Definitions for insoluble



English Language Learners Definition of insoluble

formal : not able to be solved or explained
technical : not able to be dissolved in a liquid


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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