/ Dictionary / Index S suprarational: Meaning and Definition of Find definitions for: su•pra•ra•tion•al Pronunciation: (s"pru-rash'u-nl), [key] — adj. not understandable by reason alone; beyond rational comprehension. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. supraprotest suprarenal Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language