Having no weight, or seeming to have none.

Having no weight沒有重量，or seeming to have none或看起來沒有重量。

The true, scientific use is about space: astronauts floating inside a spacecraft are weightless, because they and the ship are falling together around the Earth, so nothing pushes up under their feet. People also say it about being in water — your body feels weightless in a swimming pool — and about anything so light it hardly seems to be there: a weightless silk scarf, a weightless cake.

The true, scientific use真正、科學上的用法 is about space是講太空的情況：astronauts floating inside a spacecraft太空人在太空船裡飄浮 are weightless是失重的，because they and the ship因為他們和太空船 are falling together around the Earth一起繞著地球墜落，so nothing pushes up under their feet所以腳底下沒有東西撐著往上頂。 People also say it大家也會這樣說 about being in water指在水裡的感覺 — your body feels weightless in a swimming pool你的身體在游泳池裡感覺輕飄飄的 — and about anything so light it hardly seems to be there也用在任何輕到幾乎感覺不到重量的東西上: a weightless silk scarf像一條輕盈的絲巾, a weightless cake一個輕盈的蛋糕。

Writers like it because it also suggests being free of worry: "I felt weightless when the exam was over." It is a positive, pleasant-sounding word almost every time.

Writers作家 like it because it also suggests being free of worry喜歡用它，因為它也帶有卸下煩惱的感覺："I felt weightless when the exam was over."「考完試後我覺得整個人輕飄飄的。」 It is a positive, pleasant-sounding word almost every time這個字幾乎每次聽起來都是正面、討喜的。