[ir.reg.u.lar.i.ty] n, pl -ties [ME irregularite, fr. MF irregularite, fr. ML irregularitat-, irregularitas, fr. LL irregularis] (14c) 1: something that is irregular (as improper or dishonest conduct) "alleged irregularities in the city government"
2: the quality or state of being irregular
3: constipation