bare vs diffuse

bare and diffuse both are adjectives.

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

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

bare (adjective)	diffuse (adjective)
lacking its natural or customary covering	(of light) transmitted from a broad light source or reflected
not having a protective covering	spread out; not concentrated in one place
having everything extraneous removed including contents	lacking conciseness
providing no shelter or sustenance
lacking in magnitude or quantity
just barely adequate or within a lower limit
apart from anything else; without additions or modifications
lacking embellishment or ornamentation
having no clothes on the body
lacking a surface finish such as paint