/ Dictionary / Index T timeless: Meaning and Definition of Find definitions for: time•less Pronunciation: (tīm'lis), [key] — adj. without beginning or end; eternal; everlasting. referring or restricted to no particular time: the timeless beauty of great music. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: timeless (Thesaurus) time-lapse photography time limit Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language