diffuse vs propagate

diffuse is an adjective but propagate is not an adjective.

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

As verbs, diffuse and propagate are synonyms defined as:

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

diffuse (verb)	propagate (verb)
cause to become widely known	multiply sexually or asexually
spread or diffuse through	cause to propagate, as by grafting or layering
move outward	cause to become widely known
	transmit
	transmit or cause to broaden or spread
	become distributed or widespread
	travel through the air
	transmit from one generation to the next