/ Dictionary / Index S spendthrift: Meaning and Definition of Find definitions for: spend•thrift Pronunciation: (spend'thrift"), [key] — n. a person who spends possessions or money extravagantly or wastefully; prodigal. —adj. wastefully extravagant; prodigal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spendthrift (Thesaurus) spending money spendthrift trust Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language