distribute vs diffuse

distribute is not an adjective while diffuse is an adjective.

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

As verbs, distribute and diffuse are synonyms defined as:

As verbs, diffuse is a hyponym of distribute; that is, diffuse is a word with a more specific, narrower meaning than distribute:

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

distribute (verb)	diffuse (verb)
cause to become widely known	cause to become widely known
to arrange in a systematic order	spread or diffuse through
distribute or disperse widely	move outward
cause to be distributed
administer or bestow, as in small portions
give to several people
release
be mathematically distributive
be distributed or spread, as in statistical analyses
spread throughout a given area