/ Dictionary / Index D desuetude: Meaning and Definition of Find definitions for: des•ue•tude Pronunciation: (des'wi-td", -tyd"), [key] — n. the state of being no longer used or practiced. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: desuetude (Thesaurus) destructor desulfur Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language