The state of being free from the effects of gravity.(noun)
An experience or instance of being weightless.(noun)
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Use "weightlessness" in a sentence
"Which reminds me of that story, or joke, about how the Americans spent oodles of cash to develop a pen that writes in weightlessness and how the practical Russians simply used a pencil."
"Drinking vodka in weightlessness already has a big resonance in Ukrainian media."
"Kara was used to being small, nearest to the ground, to having taller kids look down on her, but these women in weightlessness, seemed to surround her, feet below hers, head above, shoulders off to her side."