Gauzy (adjective)

1. Transparent or translucent, especially in a delicate or filmy way.
2. Delicate or insubstantial in nature.

Origin:

The word "gauzy" is derived from the french word "gaze" meaning "a thin, transparent fabric" and it first appeared in the late 1700s in the english language.

Examples:

1. The bride wore a gauzy white dress.
2. The gauzy curtains let in the sunlight.
3. The gauzy fabric of her shirt was see-through in the sun.
4. The gauzy veil blew in the wind.
5. His promises were gauzy and insubstantial, lacking any real substance.