uniformness vs uniformity

uniformness and uniformity both are nouns.

Word	Noun	Adjective	Verb	Adverb
uniformness	Yes	No	No	No
uniformity	Yes	No	No	No

As nouns, uniformness and uniformity are synonyms defined as:

uniformness and uniformity: the quality of lacking diversity or variation (even to the point of boredom)

uniformness (noun)	uniformity (noun)
the quality of lacking diversity or variation (even to the point of boredom)	the quality of lacking diversity or variation (even to the point of boredom)
	a condition in which everything is regular and unvarying