/ Dictionary / Index P polluted: Meaning and Definition of Find definitions for: pol•lut•ed Pronunciation: (pu-l'tid), [key] — adj. made unclean or impure; contaminated; tainted: swimming in polluted waters. drunk. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polluted (Thesaurus) pollute pollution Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language