sleaziness vs inelegance

sleaziness and inelegance both are nouns.

Word	Noun	Adjective	Verb	Adverb
sleaziness	Yes	No	No	No
inelegance	Yes	No	No	No

As nouns, inelegance is a hypernym of sleaziness; that is, inelegance is a word with a broader meaning than sleaziness:

sleaziness: a lack of elegance as a consequence of wearing threadbare or dirty clothing
inelegance: the quality of lacking refinement and good taste

sleaziness (noun)	inelegance (noun)
a lack of elegance as a consequence of wearing threadbare or dirty clothing	the quality of lacking refinement and good taste
morally dishonorable