/ Dictionary / Index S substantial: Meaning and Definition of Find definitions for: sub•stan•tial Pronunciation: (sub-stan'shul), [key] — adj. of ample or considerable amount, quantity, size, etc.: a substantial sum of money. of a corporeal or material nature; tangible; real. of solid character or quality; firm, stout, or strong: a substantial physique. basic or essential; fundamental: two stories in substantial agreement. wealthy or influential: one of the substantial men of the town. of real worth, value, or effect: substantial reasons. pertaining to the substance, matter, or material of a thing. of or pertaining to the essence of a thing; essential, material, or important. being a substance; having independent existence. pertaining to or of the nature of substance rather than an accident or attribute. —n. something substantial. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: substantial (Thesaurus) substandard substantialism Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language