1. [noun] (countable) An instance of being irregular.
2. [noun] (uncountable) The state or condition of being irregular, or the extent to which something is irregular.
3. [noun] (countable) An object or event that is not regular or ordinary.
4. [noun] (countable) A violation of rules.
5. [noun] (euphemism) Diarrhea.
6. [noun] Behavior that breaches the rule or etiquette or custom or morality.
7. [noun] Not characterized by a fixed principle or rate; at irregular intervals.
8. [noun] An irregular asymmetry in shape; an irregular spatial pattern.
9. [noun] Irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis.
