Definition of insoluble
- an insoluble problem
a substance insoluble in water
the seemingly insoluble mystery concerning the identity of the people who built these ancient structures
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.
: not able to be solved or explained
: not able to be dissolved in a liquid
What made you want to look up insoluble? Please tell us where you read or heard it (including the quote, if possible).
Words Used by Nabokov Quiz
Test your knowledge - and maybe learn something along the way.TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.TAKE THE QUIZ