visibility; noticeability; perceptibility
Refers to how easily something can be seen or noticed, often used in contexts like design, safety, or signage.
Use reflective material to improve nighttime visibility.
This sign has poor visibility, so it should be changed to a more noticeable color.
Compound of 視認 (shinin, 'visual recognition') and 性 (-sei, '-ity'). The exact historical derivation is uncertain, but the word follows a common pattern for forming abstract nouns from Sino-Japanese roots.