1. in a manner that appears to have no weight; without the effect of gravity
Usage: often used in contexts involving space or zero gravity

Examples

• The astronauts floated weightlessly inside the space station.
• Objects drifted weightlessly around the cabin during the mission.
• She moved weightlessly across the dance floor like she was floating.
• The feather fell weightlessly through the vacuum chamber.
• In zero gravity, everything moves weightlessly.
• The balloon rose weightlessly into the sky.