imperfectly vs imperfect

imperfectly is not a noun while imperfect is a noun.

Word	Noun	Adjective	Verb	Adverb
imperfectly	No	No	No	Yes
imperfect	Yes	Yes	No	No

imperfectly (noun)	imperfect (noun)
	a tense of verbs used in describing action that is on-going

imperfectly (adjective)	imperfect (adjective)
	not perfect; defective or inadequate
	wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings

imperfectly (adverb)	imperfect (adverb)
in an imperfect or faulty way