1. the quality or state of being visible; the ability to be seen
Usage: formal; less common than ‘visibility’

Examples

• The visibleness of the lighthouse made it an important navigation aid.
• Poor weather conditions reduced the visibleness of the mountain peaks.
• The bright colors increased the visibleness of the warning signs.
• Scientists studied the visibleness of different materials under various lighting conditions.
• The visibleness of the stars depends on atmospheric clarity.
• Urban light pollution affects the visibleness of celestial objects.