/ Dictionary / Index C countless: Meaning and Definition of Find definitions for: count•less Pronunciation: (kount'lis), [key] — adj. too numerous to count; innumerable: the countless stars. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: countless (Thesaurus) counting room count noun Related Content Daily Word Quiz: laudable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language