evenness vs regularity

evenness and regularity both are nouns.

Word	Noun	Adjective	Verb	Adverb
evenness	Yes	No	No	No
regularity	Yes	No	No	No

As nouns, regularity is a hypernym of evenness; that is, regularity is a word with a broader meaning than evenness:

evenness (noun)	regularity (noun)
a quality of uniformity and lack of variation	the quality of being characterized by a fixed principle or rate
the quality of being balanced	a property of polygons: the property of having equal sides and equal angles
the parity of even numbers (divisible by two)