ignorantness vs unknowingness

ignorantness and unknowingness both are nouns.

Word	Noun	Adjective	Verb	Adverb
ignorantness	Yes	No	No	No
unknowingness	Yes	No	No	No

As nouns, ignorantness and unknowingness are synonyms defined as:

ignorantness and unknowingness: ignorance (especially of orthodox beliefs)

Other synonyms of ignorantness include nescience, unknowing.

ignorantness (noun)	unknowingness (noun)
ignorance (especially of orthodox beliefs)	unconsciousness resulting from lack of knowledge or attention
	ignorance (especially of orthodox beliefs)