Breadcrumb Home > Dictionary > Index D Cite deteriorate: Meaning and Definition of Find definitions for: de•te•ri•o•rate Pronunciation: (di-tēr'ē-u-rāt"), [key] — -rat•ed, -rat•ing. to make or become worse or inferior in character, quality, value, etc. to disintegrate or wear away. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: deteriorate (Thesaurus) detergent deterioration TrendingHere are the facts and trivia that people are buzzing about. April 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World Quetzalcoatl: Aztec Myths and Myths About the Aztecs Related Content Daily Word Quiz: supertonic Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language