adj deviating from ordinary forms or rules; irregular; anomalous; abnormal.
2. heteroclite ·noun any thing or person deviating from the common rule, or from common forms.
3. heteroclite ·noun 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.