/ Dictionary / Index I irrefrangible: Meaning and Definition of Find definitions for: ir•re•fran•gi•ble Pronunciation: (ir"i-fran'ju-bul), [key] — adj. not to be broken or violated; inviolable: an irrefrangible rule of etiquette. incapable of being refracted. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. irrefragable irrefutable Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language