weightlessweight‧less /ˈweɪtləs/ adjective 
- Astronauts have problems moving around in the spacecraft because they are virtually weightless.
- But would any be psychologically or physically fit enough to spend two or three years in a weightless box?
- Gravity returned, though briefly, to the weightless world of the control deck.
- I felt weightless, light as a ballet dancer.
- She felt weightless as they pitched into empty air.
- Suddenly, for the first time since Eno, it's hip to be weightless.
- They are golden boys, about 17 or 18, and apparently weightless.
- They come from a weightless environment.
- This is how weightless I feel right now.
not heavy► light · You can carry this bag -- it's fairly light.· Modern tennis rackets are much lighter than old-fashioned wooden ones.· Heat rises because hot air is lighter than cold air.light as a feather (=extremely light) · She was light as a feather to carry, and her hands were cold as ice.
► lightweight lightweight clothes, materials, or equipment are specially made so that they weigh very little: · a lightweight summer suit· a strong, lightweight material such as titanium· Today's baby buggies are lightweight, compact, and easy to fold.
► weightless if someone or something is weightless , they seem to weigh much less than usual, especially because they are floating in space or water: · Astronauts have problems moving around in the spacecraft because they are virtually weightless.
adjectiveoverweight ≠ underweightweightedweightyweightlessnounweightweightsweightingverbweighoutweighweight