nubby vs slubbed

nubby and slubbed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
nubby	No	Yes	No	No
slubbed	No	Yes	No	No

As adjectives, nubby and slubbed are synonyms defined as:

Other synonyms of nubby include homespun, nubbly, tweedy.

nubby (adjective)	slubbed (adjective)
of textiles; having a rough surface	of textiles; having a rough surface