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antigravity

[an-tee-grav-i-tee, an-tahy-]
noun
  1. Physics. the antithesis of gravity; a hypothetical force by which a body of positive mass would repel a body of negative mass.
  2. (not in technical use) a controllable force that can be made to act against the force of gravity.
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adjective
  1. (not in technical use) counteracting the force of gravity: The antigravity drive in this spaceship will enable us to reach Polaris.
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Origin of antigravity

First recorded in 1940–45; anti- + gravity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for antigravity

Historical Examples

  • Course you don't need much of a rocket when you have antigravity.

    We Didn't Do Anything Wrong, Hardly

    Roger Kuykendall

  • "Antigravity," I croaked, though you couldn't have heard me two feet.

    The Night of the Long Knives

    Fritz Reuter Leiber

  • Like the radar he made out of a TV set and the antigravity and the atomic power plant he invented to run it all with.

  • But just then the plane took a sickening bounce, as if its antigravity had only started to operate within yards of the ground.

    The Night of the Long Knives

    Fritz Reuter Leiber

  • It's supposed to have antigravity powers, too, like whatever it was that took Superior up in the first place.