The Collaborative International Dictionary of English v.0.48:

Anticipative \An*tic"i*pa*tive\
   ([a^]n`t[i^]s"[i^]*p[asl]*t[i^]v), a.
   Anticipating, or containing anticipation. "Anticipative of
   the feast to come." --Cary. -- An*tic"i*pa*tive*ly, adv.
   [1913 Webster]

WordNet (r) 3.0 (2006):

anticipative
    adj 1: marked by eager anticipation; "an expectant hush" [syn:
           anticipant, anticipative, expectant]