/ Dictionary / Index U unwritten: Meaning and Definition of Find definitions for: un•writ•ten Pronunciation: (un-rit'n), [key] — adj. not actually formulated or expressed; customary; traditional. not written; not put in writing or print; oral: an unwritten agreement. containing no writing; blank. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unwritten (Thesaurus) unwrinkle unwritten constitution Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language