/ Dictionary / Index U unnumbered: Meaning and Definition of Find definitions for: un•num•bered Pronunciation: (un-num'burd), [key] — adj. having no number or numbers as identification: unnumbered pages. countless; innumerable: the unnumbered grains of sand. uncounted. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unnumbered (Thesaurus) unnilseptium UNO 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