1. most able to float or stay on the surface of water
Usage: superlative form of floaty
2. most light and airy in texture or appearance
Usage: informal

Examples

• This is the floatiest material we tested in the pool.
• Her dress was the floatiest of all the bridesmaids’ gowns.
• The floatiest clouds drifted slowly across the sky.
• This cake has the floatiest texture I’ve ever tasted.
• Among all the fabrics, silk chiffon felt the floatiest.
• The floatiest balloons rose highest in the air.