OPACITY

Incomprehensibility resulting from obscurity of meaning

• Dullness

• Lack of clarity

• Lack of transparency

• Light-blocking ability

• Lucidity's opposite

• Milk quality

• Milk-glass property

• Murkiness

• Murky quality

• Obscurity

• The phenomenon of not permitting the passage of electromagnetic radiation

• The quality of being opaque to a degree

• The degree to which something reduces the passage of light