Weightless means having no weight or feeling like you have no weight. When astronauts float inside a spacecraft orbiting Earth, they experience weightlessness because nothing is pushing them against the floor, so they seem to float freely. They drift through the air, and if they let go of a pen, it hovers in place instead of falling.

You've probably felt something close to weightlessness yourself. On a trampoline, at the top of each bounce, there's a split second where you feel almost weightless before gravity pulls you back down. On a roller coaster that suddenly drops, your stomach might feel strange because for a moment, you and the car are falling at the same speed, creating that weightless sensation.

The word can also describe how something feels emotionally. After finishing a huge project or solving a problem that's been bothering you for weeks, you might feel weightless with relief, as if a heavy burden has been lifted from your shoulders. When dancers leap gracefully across a stage, they can appear weightless, even though gravity affects them just like everyone else.