/ Dictionary / Index I ill-informed: Meaning and Definition of Find definitions for: ill-in•formed Pronunciation: (il'in-fôrmd'), [key] — adj. lacking adequate or proper knowledge or information, as in one particular subject or in a variety of subjects: The public is ill-informed of the danger. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. illin' illinium Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language