blurriness vs dimness

blurriness and dimness both are nouns.

Word	Noun	Adjective	Verb	Adverb
blurriness	Yes	No	No	No
dimness	Yes	No	No	No

As nouns, dimness is a hyponym of blurriness; that is, dimness is a word with a more specific, narrower meaning than blurriness:

Other hyponyms of blurriness include faintness, vagueness.

blurriness (noun)	dimness (noun)
the quality of being indistinct and without sharp outlines	the property of lights or sounds that lack brilliance or are reduced in intensity
	the quality of being dim or lacking contrast
	the state of being poorly illuminated