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 of being singular, distinct, peculiar, uncommon or unusual.
An unusual action or behaviour.
A point where all parallel lines meet.
Celibacy, singleness (as contrasted with marriage).
A point where a measured variable reaches unmeasurable or infinite value.
The value or range of values of a function for which a derivative does not exist.