imparisyllabic

From Latin impar (“unequal”) + syllabic.

• IPA^(key): /ɪmˌpæɹɪsɪˈlæbɪk/

imparisyllabic (not comparable)

1. Not having the same number of syllables in all its inflections (especially of Greek or Latin nouns); for example, the Latin word pars, which has the genitive form partis.

• parisyllabic

imparisyllabic (plural imparisyllabics)

1. An imparisyllabic noun.
   • 1974 (revised 1989), Peter Rickard, A History of the French Language, Routledge 2002, pp. 50-1:

     An adjectival type corresponding phonetically to the masculine third declension imparisyllabics is represented by some O.F. survivals of Latin comparative forms