disperse vs diffuse

disperse is not an adjective while diffuse is an adjective.

Word	Noun	Adjective	Verb	Adverb
disperse	No	No	Yes	No
diffuse	No	Yes	Yes	No

As verbs, disperse and diffuse are synonyms defined as:

disperse (adjective)	diffuse (adjective)
	(of light) transmitted from a broad light source or reflected
	spread out; not concentrated in one place
	lacking conciseness

disperse (verb)	diffuse (verb)
cause to separate	cause to become widely known
cause to become widely known	spread or diffuse through
distribute loosely	move outward
separate (light) into spectral rays
move away from each other
to cause to separate and go in different directions