closing Antonyms

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