The Collaborative International Dictionary of English v.0.48:

Rapturous \Rap"tur*ous\ (-[u^]s), a.
   Ecstatic; transporting; ravishing; feeling, expressing, or
   manifesting rapture; as, rapturous joy, pleasure, or delight;
   rapturous applause.
   [1913 Webster]

WordNet (r) 3.0 (2006):

rapturous
    adj 1: feeling great rapture or delight [syn: ecstatic,
           enraptured, rapturous, rapt, rhapsodic]

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "rapturous":
   bursting with happiness, carried away, delighted, ecstatic, elate,
   elated, enchanted, enraptured, enravished, entranced, euphoric,
   exalted, exultant, flushed, freaked out, high, imparadised,
   in ecstasies, in heaven, in paradise, in raptures,
   in seventh heaven, joyful, joyous, jubilant, on cloud nine,
   overjoyed, overjoyful, possessed, rapt, raptured, ravished,
   rhapsodic, sent, thrilled, transported