/ Dictionary / Index C cacophonous: Meaning and Definition of Find definitions for: ca•coph•o•nous Pronunciation: (ku-kof'u-nus), [key] — adj. having a harsh or discordant sound. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cacophonous (Thesaurus) caconym cacophony Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language