/ Dictionary / Index W weightism: Meaning and Definition of Find definitions for: weight•ism Pronunciation: (wā'tiz-um), [key] bias or discrimination against people who are overweight. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. weight for age weightless 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