/ Dictionary / Index W worsen: Meaning and Definition of Find definitions for: wors•en Pronunciation: (wûr'sun), [key] — v.t., v.i. to make or become worse. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: worsen (Thesaurus) worse worser Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language