defenselessness vs unprotectedness

defenselessness and unprotectedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
defenselessness	Yes	No	No	No
unprotectedness	Yes	No	No	No

As nouns, defenselessness and unprotectedness are synonyms defined as:

defenselessness and unprotectedness: the property of being helpless in the face of attack

Other synonyms of defenselessness include defencelessness.

defenselessness (noun)	unprotectedness (noun)
the property of being helpless in the face of attack	the property of being helpless in the face of attack