/ Dictionary / Index L limitless: Meaning and Definition of Find definitions for: lim•it•less Pronunciation: (lim'it-lis), [key] — adj. without limit; boundless: limitless ambition; limitless space. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: limitless (Thesaurus) limiting factor limit of proportionality Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language