# insoluble
## English
### 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.

### Pronunciation

* (Received Pronunciation) IPA: /ɪnˈsɒljʊbəl/
* (General American) IPA: /ɪnˈsɑljəbəl/
* Audio (US):(file)

### Adjective

insoluble (comparative more insoluble, superlative most insoluble)
* (physical chemistry) That cannot be dissolved.
    Synonyms: indissoluble, undissolvable
    Antonyms: soluble, dissoluble, dissolvable
    Petroleum is largely insoluble in water.
* That cannot be solved.
    Synonyms: insolvable, unsolvable
    Antonyms: soluble, solvable
** 2024, Jeremy B. Rudd, A Practical Guide to Macroeconomics, p. 3
    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.
    Synonyms: inexplicable, unexplainable
    Antonyms: soluble, solvable
    Near-synonyms: unexplained, mysterious; see also Thesaurus:incomprehensible, Thesaurus:mysterious
* That cannot be broken down or dispersed.
    Synonyms: indissoluble, undissolvable
    Antonyms: soluble, dissoluble, dissolvable

#### Derived terms

* insolubility
* insolubilize
* insolubleness
* insolubly

#### Translations
### Noun

insoluble (plural insolubles)
* Any substance that cannot be dissolved.
** 2006, Ashok Pandey, Enzyme Technology, page 518: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.

### References

* ↑ “insoluble”, in Dictionary.com Unabridged, Dictionary.com, LLC, 1995–present, reproduced from Stuart Berg Flexner, editor in chief, Random House Unabridged Dictionary, 2nd edition, New York, N.Y.: Random House, 1993, →ISBN.

## Catalan
### Etymology

Borrowed from Latin īnsolūbilis.

### Pronunciation

* IPA: (Central, Balearic) [in.suˈlub.blə]
* IPA: (Valencia) [in.soˈlu.ble]

### Adjective

insoluble m or f (masculine and feminine plural insolubles)
* insoluble
* unsolvable

### Further reading

* “insoluble” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
* “insoluble”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025
* “insoluble” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
* “insoluble” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

## French
### Etymology

Learned borrowing from Latin īnsolūbilis.

### Pronunciation

* IPA: /ɛ̃.sɔ.lybl/
* Audio:(file)

### Adjective

insoluble (plural insolubles)
* (chemistry) insoluble
    Antonym: soluble
* insoluble
    Antonym: soluble
    une énigme insoluble ― (please add an English translation of this usage example)
    un problème insoluble ― (please add an English translation of this usage example)

#### Related terms

* insolvable

### Further reading

* “insoluble”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

## Spanish
### Etymology

From Latin īnsolūbilis.

### Pronunciation

* IPA: /insoˈluble/ [ĩn.soˈlu.β̞le]
* Rhymes: -uble
* Syllabification: in‧so‧lu‧ble

### Adjective

insoluble m or f (masculine and feminine plural insolubles)
* insoluble
* unsolvable

### Further reading

* “insoluble”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10