Insoluble definition

ĭn-sŏlyə-bəl
That cannot be dissolved.

Insoluble matter.

adjective
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That cannot be solved; insolvable.
adjective
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That cannot be dissolved; not soluble.
adjective
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The definition of insoluble is something that cannot be solved or dissolved.

An example of something insoluble is a cryptic phrase in an old mystery book that people have been trying to uncode for centuries.

adjective
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That cannot be dissolved.
adjective
2
0
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That cannot be explained; mysterious or inexplicable.
adjective
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1
Difficult or impossible to solve or explain; insolvable.

Insoluble riddles.

adjective
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That cannot be solved; unsolvable.
adjective
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Not capable of being fully dissolved. Fats and oils are insoluble in water.
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Origin of insoluble

  • Middle English insolible from Latin īnsolūbilis in- not in–1 solvere to loosen soluble

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Old French, from Latin insolubilis (in- + solubilis).

    From Wiktionary