/ Dictionary / Index A antigravity: Meaning and Definition of Find definitions for: an•ti•grav•i•ty Pronunciation: (an"tē-grav'i-tē, an"tī-), [key] — n. the antithesis of gravity; a hypothetical force by which a body of positive mass would repel a body of negative mass. (not in technical use) a controllable force that can be made to act against the force of gravity. —adj. (not in technical use) counteracting the force of gravity: The antigravity drive in this spaceship will enable us to reach Polaris. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. antigovernment anti-G suit Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language