closing Antonyms

opening rime rima rift retry releasing sustaining rabbet propaedeutic prologue prolegomenon proemial primogenial road route surfacing sulcus stoma start-up start starting slot scissure rut rupture rudiment pretermission preterition preparative outstart outset origination orifice opener onset occurrence natal milestone materialization longevity path pathway prelusive preludial prelude preliminary prefatory preface precessional postponed