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Insoluble

//ɪnˈsɒljʊbəl// adj, noun

Definitions

Adjective
  1. 1
    That cannot be dissolved. physical

    "Petroleum is largely insoluble in water."

  2. 2
    That cannot be solved.

    "The reason Fisher concluded that the problem is likely insoluble is that the ability of real-world agents to act on new perceived opportunities of arbitrage – including those that turn out to be incorrect – makes stability impossible to demonstrate without additional strong (and unrealistic) assumptions."

  3. 3
    That cannot be explained.

    "Near-synonyms: unexplained, mysterious; see also Thesaurus:incomprehensible, Thesaurus:mysterious"

  4. 4
    That cannot be broken down or dispersed.
Adjective
  1. 1
    without hope of solution wordnet
  2. 2
    (of a substance) incapable of being dissolved wordnet
  3. 3
    admitting of no solution or explanation wordnet
Noun
  1. 1
    Any substance that cannot be dissolved.

    "As there is a partial vacuum inside the drum, the liquid is sucked inside the drum and the insolubles are deposited on the outer surface of the membrane filter."

Etymology

Etymology 1

From Middle English insolible, from Middle French insoluble, from Latin insolūbilis, from in- + solūbilis. Piecewise doublet of insolvable and unsolvable. By surface analysis, in- + soluble.

Etymology 2

From Middle English insolible, from Middle French insoluble, from Latin insolūbilis, from in- + solūbilis. Piecewise doublet of insolvable and unsolvable. By surface analysis, in- + soluble.

See also for "insoluble"

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