The Collaborative International Dictionary of English v.0.48:

Inceptive \In*cep"tive\, a.
   Beginning; expressing or indicating beginning; as, an
   inceptive proposition; an inceptive verb, which expresses the
   beginning of action; -- called also inchoative. --
   In*cep"tive*ly, adv.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Inceptive \In*cep"tive\, n.
   An inceptive word, phrase, or clause.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

48 Moby Thesaurus words for "inceptive":
   abecedarian, aboriginal, antenatal, autochthonous, beginning,
   budding, creative, elemental, elementary, embryonic, fetal,
   formative, foundational, fundamental, gestatory, in embryo,
   in its infancy, in the bud, inaugural, inchoate, inchoative,
   incipient, incunabular, infant, infantile, initial, initiative,
   initiatory, introductory, inventive, nascent, natal, original,
   parturient, postnatal, pregnant, prenatal, primal, primary, prime,
   primeval, primitive, primogenial, procreative, rudimental,
   rudimentary, ur, wonder