Definitions of authoritatively

  1. in an authoritative manner; "she spoke authoritatively" Scrapingweb Dictionary DB
  2. In an authoritative manner. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.
  3. adv. With authority; positively. Cabinet Dictionary
  4. In an authoritative manner, with a shew of authority; with due authority. Complete Dictionary