/ Dictionary / Index C colorfast: Meaning and Definition of Find definitions for: col•or•fast Pronunciation: (kul'ur-fast", -fäst"), [key] — adj. maintaining color without fading or running: colorfast textile. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: colorfast (Thesaurus) colored stone colorfield Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language