1. the quality of being transparent or see-through
2. the quality of being steep or precipitous
3. the quality of being complete or absolute

Examples

• The sheerness of the curtains allowed sunlight to filter through.
• She was embarrassed by the sheerness of her white dress in the bright light.
• The sheerness of the cliff face made climbing extremely dangerous.
• Hikers were amazed by the sheerness of the mountain’s eastern wall.
• The sheerness of his arrogance shocked everyone at the meeting.
• The sheerness of the drop below made her dizzy.
• The fabric’s sheerness made it perfect for summer clothing.