/ Dictionary / Index L lookism: Meaning and Definition of Find definitions for: look•ism Pronunciation: (look'iz-um), [key] discrimination or prejudice based on a person's physical appearance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. looking-glass self lookout Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language