impure

adjective

1. not pure; mixed with extraneous matter, especially of an inferior or contaminating nature: impure water and air.
2. modified by admixture, as color.
3. mixed or combined with something else: an impure style of architecture.
4. regarded by a religion as unclean, as animals or things.
5. not morally pure or proper; unchaste or obscene: impure thoughts.
6. marked by foreign and unsuitable or objectionable elements or characteristics, as a style of art or of literary expression.

adjective

1. not pure; combined with something else; tainted or sullied
2. (in certain religions)
   1. (of persons) ritually unclean and as such debarred from certain religious ceremonies
   2. (of foodstuffs, vessels, etc) debarred from certain religious uses
3. (of a colour) mixed with another colour or with black or white
4. of more than one origin or style, as of architecture or other design