anomalous
Cross references: 1. irregular anom.a.lous \*-'na:m-*-l*s\ aj [LL anomalus, fr. Gk ano-malos, lit., uneven, fr. a- + ]homalos even, fr. homos same - more at SAME 1: deviating from a general rule, method, or analogy : ABNORMAL 2: being out of keeping with accepted notions of fitness or order; also : inconsistent with what would naturally be expected - anom.a.lous.ly av