So I've decided that my new favorite word is buoyant.
" \Buoy"ant\, a. Having the quality of rising or floating in a fluid; tending to rise or float; as, iron is buoyant in mercury."
Here are various ways I plan to use this word on a regular basis:
I am feeling rather buoyant today.
I eat plenty of salt to make myself more buoyant in water.
The sprinkles are buoyant on top of the ice cream.
My doctor says I need to lower my cholesterol AND my buoyancy.
My new favorite word is buoyant.
I'd like to be more buoyant in the future.

And there you have it. Buoyancy.