/ Dictionary / Index I impurity: Meaning and Definition of Find definitions for: im•pu•ri•ty Pronunciation: (im-pyoor'i-tē), [key] — pl. -ties the quality or state of being impure. Often,something that is or makes impure: After the flood the authorities warned against impurities in the drinking water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: impurity (Thesaurus) impure imputation Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language