Sheer (adjective)

1. Complete, absolute, or utter.
2. Very steep or vertical.
3. Without anything to soften or conceal.
4. Transparent or translucent.
5. So thin as to appear transparent or translucent.

Origin:

Middle english schere "pure, bright, unadulterated", from old english scir "clear, bright".

Examples:

1. The sheer beauty of the mountains took her breath away.
2. The cliff face was sheer, with no handholds for climbers.
3. The curtains were made of a sheer fabric that let in the light.
4. She wore a sheer blouse that revealed her skin underneath.
5. The sun was so bright it was almost sheer.