fuzziness vs dimness

fuzziness and dimness both are nouns.

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

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

Other hyponyms of fuzziness include faintness, vagueness.

fuzziness (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