/ Dictionary / Index S spoilsport: Meaning and Definition of Find definitions for: spoil•sport Pronunciation: (spoil'spôrt", -spōrt"), [key] — n. a person whose selfish or unsportsmanlike attitudes or actions spoil the pleasure of others, as in a game or social gathering. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spoilsport (Thesaurus) spoilsman spoils system Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language