The Collaborative International Dictionary of English v.0.48:
Operatic \Op`er*at"ic\, Operatical \Op`er*at"ic*al\, a. Of or pertaining to the opera or to operas; characteristic of, suitable for, or resembling, the opera; as, an operatic voice. [1913 Webster +PJC]WordNet (r) 3.0 (2006):
operatic adj 1: of or relating to or characteristic of opera