Breadcrumb Home > Dictionary > Index S substantival: Meaning and Definition of Find definitions for: sub•stan•ti•val Pronunciation: (sub"stun-tī'vul), [key] — adj. noting, of, or pertaining to a substantive. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: substantival (Thesaurus) substantiate substantive ✖ Related Content Daily Word Quiz: acronym Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language