aridity vs barrenness

aridity and barrenness both are nouns.

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

As nouns, aridity and barrenness are synonyms defined as:

Other synonyms of aridity include fruitlessness.

aridity (noun)	barrenness (noun)
the quality of yielding nothing of value	the quality of yielding nothing of value
a deficiency of moisture (especially when resulting from a permanent absence of rainfall)	the state (usually of a woman) of having no children or being unable to have children