slub vs raggedness

slub and raggedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
slub	Yes	No	No	No
raggedness	Yes	No	No	No

As nouns, raggedness is a hypernym of slub; that is, raggedness is a word with a broader meaning than slub:

slub: soft lump or unevenness in a yarn; either an imperfection or created by design
raggedness: a texture of a surface or edge that is not smooth but is irregular and uneven

Other hypernyms of slub include roughness.

slub (noun)	raggedness (noun)
soft lump or unevenness in a yarn; either an imperfection or created by design	shabbiness by virtue of being in rags
	a texture of a surface or edge that is not smooth but is irregular and uneven