/ Dictionary / Index R retarded: Meaning and Definition of Find definitions for: re•tard•ed Pronunciation: (ri-tär'did), [key] — adj. characterized by retardation: a retarded child. —n. mentally retarded persons collectively (usually prec. by the): new schools for the retarded. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: retarded (Thesaurus) retardation retardee Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language