unwitting vs unknowing

unwitting is not a noun while unknowing is a noun.

Word	Noun	Adjective	Verb	Adverb
unwitting	No	Yes	No	No
unknowing	Yes	Yes	No	No

As adjectives, unwitting and unknowing are synonyms defined as:

unwitting and unknowing: unaware because of a lack of relevant information or knowledge

Other synonyms of unwitting include ignorant, unknowledgeable.

unwitting (noun)	unknowing (noun)
	ignorance (especially of orthodox beliefs)

unwitting (adjective)	unknowing (adjective)
not aware or knowing	unaware because of a lack of relevant information or knowledge
unaware because of a lack of relevant information or knowledge
not done with purpose or intent