unsoluble

Adjective

insoluble (comparative more insoluble, superlative most insoluble)

1. (physical) That cannot be dissolved.
   • Petroleum is largely insoluble in water.

   Synonyms:

   indissoluble, undissolvable

   Antonyms:

   soluble, dissoluble, dissolvable

2. That cannot be solved.
   • This dispute, as already stated was insoluble in the ideological context in which it took place.1978 [1976], Leszek Kołakowski, translated by P[aul] S[teven] Falla, Main Currents of Marxism, volume II: The Golden Age, Oxford: Clarendon Press, translation of Główne nurty marksizmu: rozwój (in...

   Synonyms:

   insolvable, unsolvable

   Antonyms:

   soluble, solvable

3. That cannot be explained.
   • Near-synonyms: unexplained, mysterious; see also Thesaurus:incomprehensible, Thesaurus:mysterious

   Synonyms:

   inexplicable, unexplainable, unexplained, mysterious, abstruse, Chinese, dense, enigmatic, fathomless, bottomless

   Antonyms:

   soluble, solvable

4. That cannot be broken down or dispersed.

   Synonyms:

   indissoluble, undissolvable

   Antonyms:

   soluble, dissoluble, dissolvable

See all 5 meanings of insoluble