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English definition of “weightless”

weightless

adjective  /ˈweɪt·ləs/ us  

weightless adjective (NOT HEAVY)

being in a state in which gravity (= the force by which the earth attracts objects) does not cause movement of objects: The astronauts are weightless in space.
weightlessness
noun [U]  /ˈweɪt·lə·snəs/ us  
Then the rocket motor will shut down and passengers will experience the silence of space and the magic of weightlessness.
(Definition of weightless from the Cambridge Academic Content Dictionary © Cambridge University Press)
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