/ Dictionary / Index U unpredictable: Meaning and Definition of Find definitions for: un•pre•dict•a•ble Pronunciation: (un"pri-dik'tu-bul), [key] — adj. not predictable; not to be foreseen or foretold: an unpredictable occurrence. —n. something that is unpredictable: the unpredictables of life. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unpredictable (Thesaurus) unprecedented unprejudiced Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language