regularity vs irregularity

regularity and irregularity both are nouns.

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

regularity (noun)	irregularity (noun)
the quality of being characterized by a fixed principle or rate	behavior that breaches the rule or etiquette or custom or morality
a property of polygons: the property of having equal sides and equal angles	not characterized by a fixed principle or rate; at irregular intervals
	an irregular asymmetry in shape; an irregular spatial pattern
	irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis