shabbiness vs seediness

shabbiness and seediness both are nouns.

Word	Noun	Adjective	Verb	Adverb
shabbiness	Yes	No	No	No
seediness	Yes	No	No	No

As nouns, shabbiness and seediness are synonyms defined as:

shabbiness and seediness: a lack of elegance as a consequence of wearing threadbare or dirty clothing

Other synonyms of shabbiness include manginess, sleaziness.

shabbiness (noun)	seediness (noun)
an unjust act	a lack of elegance as a consequence of wearing threadbare or dirty clothing
a lack of elegance as a consequence of wearing threadbare or dirty clothing