/ Dictionary / Index S sumptuous: Meaning and Definition of Find definitions for: sump•tu•ous Pronunciation: (sump'ch-us), [key] — adj. entailing great expense, as from choice materials, fine work, etc.; costly: a sumptuous residence. luxuriously fine or large; lavish; splendid: a sumptuous feast. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sumptuous (Thesaurus) sumptuary law Sumter Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language