An astromaut is weightless in space.
having little or no apparent weight; specif.,
- falling freely through a gravitational field, without apparent gravitational effects, as everything does inside an orbital spacecraft
- of or having zero gravity
- existing in a state of equilibrium within a fluid
- Having little or no weight.
- Not experiencing the effects of gravity.
(comparative more weightless, superlative most weightless)
weight +"Ž -less