/ Dictionary / Index I immediate annuity: Meaning and Definition of Find definitions for: imme'diate annu'ity Pronunciation: [key] an annuity bought with a single premium, with payments to the annuitant to begin at the end of one payment period, as a month or a year. Cf. deferred annuity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. immediate immediate constituent Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language