Lacking stiffness or firmness; hanging or moving in a loose, flexible manner. The puppy's floppy ears bounced as it ran across the yard.
Not able to maintain a firm or erect position; drooping or sagging. The hat had a wide, floppy brim that shaded her face from the sun.
Relating to or designed for use with a floppy disk. The computer still had a floppy drive for legacy software.