barren vs barrenness

barren and barrenness both are nouns.

Word	Noun	Adjective	Verb	Adverb
barren	Yes	Yes	No	No
barrenness	Yes	No	No	No

barren (noun)	barrenness (noun)
an uninhabited wilderness that is worthless for cultivation	the quality of yielding nothing of value
	the state (usually of a woman) of having no children or being unable to have children

barren (adjective)	barrenness (adjective)
providing no shelter or sustenance
completely wanting or lacking
not bearing offspring