An impurity is a substance inside a confined amount of liquid, gas, or solid, which differs from the chemical composition of the material or compound.
Impurity may also refer to:
Impurity (Fleshcrawl album), 1994 Impurity (New Model Army album), 1990 Gini impurity, in decision tree learning "Impurities," a song by Le Sserafim from Antifragile (EP), 2022
See also Purity Ritual impurity Aśuddhatā, in Hindu religion Dirty Unclean (disambiguation) Vice