/ Dictionary / Index S splendiferous: Meaning and Definition of Find definitions for: splen•dif•er•ous Pronunciation: (splen-dif'ur-us), [key] — adj. splendid; magnificent; fine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: splendiferous (Thesaurus) splendid splendor 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