Inceptive

1. (a.) Beginning; indicating beginning of action; as, an inceptive proposition; an inceptive verb, which expresses the beginning of action; -- called also inchoative.

2. (n.) An inceptive word, phrase, or clause.

Thesaurus Entries

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