The state or condition of being irregular, or the extent to which something is irregular.
A violation of rules.
An object or event that is not regular or ordinary.
An instance of being irregular.
Irregular bowel movement (e.g. diarrhea or constipation).
The state or characteristic of being variable.
The degree to which a thing is variable. In data or statistics this is often a measurement of distance from the mean or a description of data range.