The Collaborative International Dictionary of English v.0.48:

Denunciate \De*nun"ci*ate\, v. t. [L. denuntiatus, denunciatus,
   p. p. of denuntiare, -ciare. See Denounce.]
   To denounce; to condemn publicly or solemnly. [R.]
   [1913 Webster]

         To denunciate this new work.             --Burke.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

79 Moby Thesaurus words for "denunciate":
   accuse, allege, anathematize, anathemize, animadvert on, arraign,
   article, attaint, blacklist, blame, book, bring accusation,
   bring charges, bring home to, bring to book, call to account,
   cast blame upon, cast reflection upon, censure, charge, cite,
   complain, complain against, condemn, convict, cry down,
   cry out against, cry out on, cry shame upon, damn, decry, denounce,
   doom, excommunicate, fasten on, fasten upon, find guilty, finger,
   fulminate against, hang something on, impeach, imply, impugn,
   impute, indict, inform, inform against, inform on, insinuate,
   inveigh against, knock, lay charges, lodge a complaint,
   lodge a plaint, menace, pass sentence on, penalize, pin on,
   prefer charges, press charges, pronounce judgment,
   pronounce sentence, proscribe, put on report, rap, reflect upon,
   report, reprehend, reproach, reprobate, sentence, shake up, skin,
   take to task, task, taunt with, tax, threaten, twit