diaphanous
Meaning: light, airy, transparent
Usage: Sunlight poured in through the diaphanous curtains, brightening the room.
ethereal
Meaning: heavenly, exceptionally delicate or refined
Usage: In her flowing silk gown and lace veil, the bride looked ethereal.
lithe
Meaning: graceful, flexible, supple
Usage: Although the dancers were all outstanding, Jae Sun’s control of her lithe body was particularly impressive.