admixture vs impurity

admixture and impurity both are nouns.

Word	Noun	Adjective	Verb	Adverb
admixture	Yes	No	No	No
impurity	Yes	No	No	No

As nouns, impurity is a hypernym of admixture; that is, impurity is a word with a broader meaning than admixture:

admixture: the state of impairing the quality or reducing the value of something
impurity: the condition of being impure

Other hypernyms of admixture include impureness.

admixture (noun)	impurity (noun)
the act of mixing together	the condition of being impure
an additional ingredient that is added by mixing with the base	worthless or dangerous material that should be removed
the state of impairing the quality or reducing the value of something