insoluble

adjective

No English definition recorded for this entry.

Wiktionary

Pronunciation: /ɪnˈsɒljʊbəl/ / /ɪnˈsɑljəbəl/

adj

Etymology: 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.

That cannot be dissolved.
“Petroleum is largely insoluble in water.”
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.”
That cannot be explained.
“Near-synonyms: unexplained, mysterious; see also Thesaurus:incomprehensible, Thesaurus:mysterious”
That cannot be broken down or dispersed.

noun

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.”