1. the quality of being easy to see through; transparency
2. the quality of being easy to understand; clarity
3. the quality of being bright or distinct; sharpness

Examples

• The clearness of the water made it easy to see the fish below.
• She explained the concept with such clearness that everyone understood immediately.
• The clearness of the night sky allowed us to see countless stars.
• The speaker's clearness of expression impressed the audience.
• The photograph had remarkable clearness and detail.
• His clearness of thought helped him solve the problem quickly.