permeate vs diffuse

permeate is not an adjective while diffuse is an adjective.

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

As verbs, permeate and diffuse are synonyms defined as:

Other synonyms of permeate include imbue, interpenetrate, penetrate, pervade, riddle.

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

permeate (verb)	diffuse (verb)
pass through	cause to become widely known
spread or diffuse through	spread or diffuse through
penetrate mutually or be interlocked	move outward