- impurity, dross - worthless material that should be removed; "there were impurities in the water"
--1 is a kind of waste, waste material, waste matter, waste product
- impurity, impureness - the condition of being impure
--2 is a kind of condition, status
Antonyms: purity, pureness
--2 has particulars:adulteration, debasement; admixture, alloy; contamination, taint; dirtiness; putridity; pollution