reasonably vs middling

reasonably is not a noun while middling is a noun.

Word	Noun	Adjective	Verb	Adverb
reasonably	No	No	No	Yes
middling	Yes	Yes	No	Yes

As adverbs, reasonably and middling are synonyms defined as:

Other synonyms of reasonably include fairly, jolly, moderately, passably, pretty, somewhat.

reasonably (noun)	middling (noun)
	any commodity of intermediate quality or size (especially when coarse particles of ground wheat are mixed with bran)

reasonably (adjective)	middling (adjective)
	lacking exceptional quality or ability

reasonably (adverb)	middling (adverb)
to certain extent or degree	to certain extent or degree
with good sense or in a reasonable or intelligent manner