weightless

adj having no weight, or with no weight relative to one's/its surroundings because of the absence of gravity 无重量的; 失重的.

weep away, weep for, weep out, weep over, weeping, weepy, weevil, wef, weft, weigh, weigh-in, weighbridge, weighing-machine, weighing-scale, weight, weight-lifter, weight-lifting, weightily, weightiness, weighting, weightlessness, weighty, weir, weird, weirdly, weirdness, weirdo, welcome, welcome to, weld, welder, welfare, welfare state, welfare work, well, Well Tempered Clavichord, well up in, well-advised, well-aimed, well-appointed,