/ Dictionary / Index U undying: Meaning and Definition of Find definitions for: un•dy•ing Pronunciation: (un-dī'ing), [key] — adj. deathless; unending. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: undying (Thesaurus) unduly unearned Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language