Radience

Example:The room was dark, and the only source of light came from a single small candle dimming in the corners of the darkness.

Definition:Lack of light; obscurity; gloom.

Example:The colors of the painting had lost their luster, the dullness setting in over time.

Definition:Lack of brightness or sharpness of color; dreariness.

Example:Despite his efforts to appear charismatic, he was just a mooch, someone who gained from others without adding value.

Definition:A synonym which contrasts with radiance as it refers to a person who is sordid, ignoble, and despicable, lacking in positive attributes.