English

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

     

    impure

     adjective
    adjective
    BrE BrE//ɪmˈpjʊə(r)//
     
    ; NAmE NAmE//ɪmˈpjʊr//
     
    Immoral
     
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  1. 1not pure or clean; not consisting of only one substance but mixed with one or more substances often of poorer quality impure gold Some of these drugs are highly impure.
  2. 2(old-fashioned or formal) (of thoughts or feelings) morally bad, especially because they are connected with sex impure thoughts/motives See related entries: Immoral
  3. opposite pure
    Word Origin late Middle English (in the sense ‘dirty, containing offensive matter’): from Latin impurus, from in- ‘not’ + purus ‘pure’.
See the Oxford Advanced American Dictionary entry: impure