recency vs recentness

recency and recentness both are nouns.

Word	Noun	Adjective	Verb	Adverb
recency	Yes	No	No	No
recentness	Yes	No	No	No

As nouns, recency and recentness are synonyms defined as:

As nouns, recency and recentness are synonyms defined as:

recency and recentness: the property of having happened or appeared not long ago

recency (noun)	recentness (noun)
a time immediately before the present	a time immediately before the present
the property of having happened or appeared not long ago	the property of having happened or appeared not long ago