"impurest" in the adjective sense
combined with extraneous elements
used of persons or behaviors) immoral or obscene
3. unclean, impure
having a physical or moral blemish so as to make impure according to dietary or ceremonial laws
"and the swine...is unclean to you"-Leviticus 11:3
Source: WordNet® (An amazing lexical database of English)
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