/ Dictionary / Index I inflationary spiral: Meaning and Definition of Find definitions for: infla'tionary spi'ral Pronunciation: [key] — Econ. Econ. See under(def. 7). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. inflationary inflationary universe Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language