The Collaborative International Dictionary of English v.0.48:
Antenuptial \An`te*nup"tial\, a. Preceding marriage; as, an antenuptial agreement. --Kent. [1913 Webster]WordNet (r) 3.0 (2006):
antenuptial adj 1: relating to events before a marriage; "prenuptial agreement" [syn: prenuptial, premarital, antenuptial] [ant: postnuptial]