prefatory Synonyms

introductory prefatorial prelusory prelusive preludious preludial preliminary precursory precursive preparative preparatory prepositive prolegomenous prodromic prefatial prelim propaedeutic proemial prodromal prior prevenient precessional precedent first exploratory exordial elementary early beginning basic anterior antecedent inaugural inductive preceding preambulatory parenthetical opening introductive introducing initiatory initiative initial advance