/ Dictionary / Index S simplistic: Meaning and Definition of Find definitions for: sim•plis•tic Pronunciation: (sim-plis'tik), [key] — adj. characterized by extreme simplism; oversimplified: a simplistic notion of good and bad. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: simplistic (Thesaurus) simplism Simplon 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