buoyancy

The balloon showed a lack of buoyancy after the failed mission the day before, so Donaldson insisted on taking just one passenger with him this time.

Scott said he "knew she had gone" when he saw her buoyancy aid a tethered buoy in the Firth of Forth as it was "the last thing that would have saved her".

And in so doing, we lose our enjoyment of the moment, our buoyancy, our joie de vivre.

For all the buoyancy and optimism that’s been radiating from the convention stage, there have been warnings too.

The buoyancy and, dare we say, joy generated by the shiny new Harris campaign feels unprecedented, even when compared to Barack Obama’s 2008 juggernaut message of hope.