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Definition of insoluble adjective from the Oxford Advanced Learner's Dictionary

insoluble

adjective
 
/ɪnˈsɒljəbl/
 
/ɪnˈsɑːljəbl/
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  1. (of a problem, mystery, etc.) that cannot be solved or explained
    • The problem seemed insoluble.
    Oxford Collocations Dictionaryverbs
    • be
    • seem
    • remain
    adverb
    • almost
    • apparently
    • seemingly
    See full entry
  2. insoluble (in something) (of a substance) that does not dissolve in a liquid
    • These chemicals are practically insoluble in water.
    opposite solubleTopics Physics and chemistryc2
    Oxford Collocations Dictionaryverbs
    • be
    adverb
    • highly
    • relatively
    • almost
    preposition
    • in
    See full entry
  3. Word Originlate Middle English: from Old French, or from Latin insolubilis, from in- ‘not’ + solubilis, from solvere ‘loosen, unfasten’.
See insoluble in the Oxford Advanced American DictionarySee insoluble in the Oxford Learner's Dictionary of Academic English
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