floaty

Tending to float on a liquid or to rise in air or a gas; buoyant.

Of a ship: having a shallow draft (the depth from the waterline to the bottom of a vessel's hull), and thus drawing less (that is, floating higher in) water.

Of music: light and relaxing.

Of an object: light and flimsy or soft; specifically, of a dress: lightweight, so as to rise away from the body when the wearer is moving.

Of a person: feeling calm, dreamy, happy, etc., as if floating in the air.

Of speech or writing: overly complicated or elaborate; flowery, grandiloquent.