Definition of "irregularity"

(countable) An instance of being irregular.  examples

(uncountable) The state or condition of being irregular, or the extent to which something is irregular.  examples

(countable) An object or event that is not regular or ordinary.  examples

(countable) A violation of rules.  examples

(euphemistic) Irregular bowel movement (e.g. diarrhea or constipation).  quotations  examples