impurity - definition and synonyms

noun 

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/ɪmˈpjʊərəti/
singularimpurity
pluralimpurities
  1. 1
    [countable] an amount of a substance, especially one that is not valuable or is of low quality, that is present in another substance
  2. 2
    [uncountable] the quality of not being pure

    the impurity of the air breathed by mineworkers

     Synonyms and related words