equivocal vs equivocalness

equivocal is not a noun while equivocalness is a noun.

Word	Noun	Adjective	Verb	Adverb
equivocal	No	Yes	No	No
equivocalness	Yes	No	No	No

equivocal (noun)	equivocalness (noun)
	unclearness by virtue of having more than one meaning

equivocal (adjective)	equivocalness (adjective)
open to two or more interpretations; or of uncertain nature or significance; or (often) intended to mislead
uncertain as a sign or indication
open to question