insoluble
UK /ɪnˈsɒljʊbəl/ · US /ɪnˈsɑljəbəl/ adjective, noun
Forms insolubles
- adjective (physical chemistry) That cannot be dissolved. “Petroleum is largely insoluble in water.”
- adjective That cannot be solved.
- adjective That cannot be explained.
- adjective That cannot be broken down or dispersed.
- noun Any substance that cannot be dissolved.
Synonyms
indissoluble undissolvable insolvable unsolvable inexplicable unexplainable unexplained mysterious abstruse Chinese dense enigmatic fathomless bottomless Greek inapprehensible incognizable incomprehensible ineffable inenubilable
Antonyms
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.
Webster’s 1913
- adjective Not soluble; in capable or difficult of being dissolved, as by a liquid; as, chalk is insoluble in water.
- adjective Not to be solved or explained; insolvable; as, an insoluble doubt, question, or difficulty.
Etymology [L. insolubilis indissoluble, that can not be loosed: cf. F. insoluble. See In- not, and Soluble, and cf. Insolvable.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “insoluble”, CC BY-SA 4.0. Details