UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/vəˈsɪfərəs/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/voʊˈsɪfərəs/ ,USA pronunciation: respelling(vō sifər əs)

WordReference Random House Learner's Dictionary of American English © 2020
vo•cif•er•ous /voʊˈsɪfərəs/USA pronunciation   adj. 
  1. crying out noisily.
  2. characterized by noisy or strong outcry;
    vehement:vociferous protests.
vo•cif•er•ous•ly, adv. See -voc-.

WordReference Random House Unabridged Dictionary of American English © 2020
vo•cif•er•ous  (vō sifər əs),USA pronunciation adj. 
  1. crying out noisily;
  2. characterized by or uttered with vociferation:a vociferous manner of expression.
vo•cifer•ous•ly, adv. 
vo•cifer•ous•ness, n. 
  • vocifer(ant) + -ous 1605–15
    • 1.See corresponding entry in Unabridged loud, noisy, vocal, uproarious, boisterous.

Collins Concise English Dictionary © HarperCollins Publishers::
vociferous /vəʊˈsɪfərəs/ adj
  1. characterized by vehemence, clamour, or noisiness: vociferous protests
  2. making an outcry or loud noises; clamorous: a vociferous mob

voˈciferously adv voˈciferousness n
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