luminescence

Example:She turned off the lights and sat in the darkness, enjoying a quiet time for herself.

Definition:The absence of light or a very low level of light; pitch-black or impenetrable darkness.

Example:The dimness of the room made it hard to see the details on the painting.

Definition:The quality of being slightly or barely perceptible; not bright or vivid.

Example:The obscurity of the text made it challenging to understand the meaning.

Definition:The state or condition of being hidden or obscured, as by dimness or darkness.