Heteroclite

Het·er·o·clite

Heteroclite

a.
  1. Deviating from ordinary forms or rules; irregular; anomalous; abnormal.

Heteroclite

n.
  1. A word which is irregular or anomalous either in declension or conjugation, or which deviates from ordinary forms of inflection in words of a like kind; especially, a noun which is irregular in declension. (Gram.)
  2. Any thing or person deviating from the common rule, or from common forms.