Prolegomenous Synonyms

Before or in preparation for the main matter, action, or business
(Adjective)
Synonyms:
  1. inductive
  2. introductory
  3. prefatory
  4. preliminary
  5. preparatory
Serving to introduce a subject or person, for example
(Adjective)
Synonyms:
  1. introductory
  2. prefatory
  3. preliminary
  4. preparatory