Entry 1 sense Webster, 1913 Vociferous /vōs-ĭf'-ẽr-əs/ · Vo·cif·er·ous · IPA /voʊˈsɪfəɹəs/ 01 a. Making a loud outcry; clamorous; noisy; as, vociferous heralds. 1. Making a loud outcry; clamorous; noisy; as, vociferous heralds.