Breadcrumb Home > Dictionary > Index W weightless: Meaning and Definition of Find definitions for: weight•less Pronunciation: (wāt'lis), [key] — adj. being without apparent weight, as a freely falling body or a body acted upon by a force that neutralizes gravitation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: weightless (Thesaurus) weightism weightlifting ✖ Related Content Daily Word Quiz: restive Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language