/ Dictionary / Index C crystal-clear: Meaning and Definition of Find definitions for: crys•tal-clear Pronunciation: (kris'tl klēr'), [key] — adj. absolutely clear; transparent; lucid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: crystal-clear (Thesaurus) crystal ball crystal defect Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language