Diffuseness
/dɪˈfjuːsnəs/
Definition 1 of 1
Pro Tip 1/3Literal Meaning
The word often describes light, sound, or smells dispersing in all directions. 
The gentle diffuseness of the sunlight through the leaves was calming.
Pro Tip 2/3Metaphorical Use
It can be used to describe abstract concepts, like ideas or information, spreading out. 
With the diffuseness of digital media, rumors spread quickly.
Pro Tip 3/3Negative Connotation
Sometimes implies lack of focus or being overly lengthy in speech or writing. 
His speech exhibited a diffuseness that lost the audience's attention.