in·​sol·​u·​ble | \ (ˌ)in-ˈsäl-yə-bəl \

Definition of insoluble

: not soluble: such as
a archaic : indissoluble
b : having or admitting of no solution or explanation an insoluble problem
c : incapable of being dissolved in a liquid and especially water also : soluble only with difficulty or to a slight degree

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Other Words from insoluble

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

This is hard to do precisely because despair is insoluble. Cheryl Strayed, New York Times, "What Should I Do About My Rage?," 15 May 2018 High fiber plant foods work to clean the gut by either keeping things moving along (insoluble), or by packaging up and carrying away (soluble) unwanted/unneeded materials. Lori Nickel, Milwaukee Journal Sentinel, "Chin Up: The body's second brain — the gut — and how to keep it healthy," 13 June 2018 For one thing, whole fruit has both soluble and insoluble fiber. Markham Heid, Time, "Is It Possible To Eat Too Much Fruit?," 6 June 2018 The combo of soluble and insoluble fiber in berries can help slow down the rate of digestion in your GI tract, causing a steadier release of sugar into your bloodstream and a more stable, longer-lasting energy boost! Jaclyn London, Ms, Rd, Cdn, Good Housekeeping, "Why You Should Go All In on Blueberries This Summer," 31 May 2018 The show’s trick of making personal enmities and blindnesses stand in for the seemingly insoluble antagonisms of the larger conflict still works. Mike Hale, New York Times, "Review: ‘Fauda’ Returns on Netflix, Guns Blazing," 23 May 2018 Even outside these heated exchanges, a lot of Zuckerberg’s answers seemed cut off from the current moment, set aside for a future when today’s insoluble problems become child’s play for an advanced artificial intelligence. Evan Horowitz,, "Zuckerberg’s face time with Congress," 11 Apr. 2018 Many philosophers think the hard problem insoluble, because consciousness cannot be reduced to pulses in neurons in the same way bodily functions can be explained by gene expression. Jason Pontin, WIRED, "How Do You Know You Are Reading This?," 2 Apr. 2018 These are insoluble powders, and are not nearly the same as the liquid colorant solutions that are typically used in CYMK-type inkjet printers. Joyann King, Harper's BAZAAR, "Why You Can't "Print" Quality Cosmetics," 9 May 2014

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

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

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More Definitions for insoluble



English Language Learners Definition of insoluble

: not able to be solved or explained

: not able to be dissolved in a liquid


in·​sol·​u·​ble | \ in-ˈsäl-yə-bəl \

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 \

Medical Definition of insoluble

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

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More from Merriam-Webster on insoluble

Rhyming Dictionary: Words that rhyme with insoluble

Thesaurus: All synonyms and antonyms for insoluble

Spanish Central: Translation of insoluble

Nglish: Translation of insoluble for Spanish Speakers

Comments on insoluble

What made you want to look up insoluble? Please tell us where you read or heard it (including the quote, if possible).


to gather or build up little by little

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