/ Dictionary / Index I impaired: Meaning and Definition of Find definitions for: im•paired Pronunciation: (im-pârd'), [key] — adj. weakened, diminished, or damaged: impaired hearing; to rebuild an impaired bridge. functioning poorly or inadequately: Consumption of alcohol results in an impaired driver. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: impaired (Thesaurus) impair impala Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language