Suitable for an introduction or beginning; introductory; prefatory; as, an initiatory step.

An introductory act or rite.

Tending or serving to initiate; introducing by instruction, or by the use and application of symbols or ceremonies; elementary; rudimentary.

serving to set in motion; "the magazine's inaugural issue"; "the initiative phase in the negotiations"; "an initiatory step toward a treaty"; "his first (or maiden) speech in Congress"; "the liner's maiden voyage"