“+ noun
Etymology: Middle English irregularite, from Old French irregularité, from Medieval Latin irregularitat-, irregularitas, from Late Latin irregularis irregular + Latin -itat-, -itas -ity — more at irregular
1. : the quality or state of being irregular
2. : something that is irregular ; especially : lack of proper and honest conduct (as in respect to a position of trust) — usually used in plural
alleged irregularities in the city government
irregularities in his accounts