Authoritatively - definition of authoritatively by The Free Dictionary Having or arising from authority; official: an authoritative decree; authoritative sources 2 Of acknowledged accuracy or excellence; highly reliable: an authoritative account of the revolution 3 Demonstrating authority; commanding: the captain's authoritative manner au·thor′i·ta′tive·ness n
AUTHORITATIVE definition and meaning | Collins English Dictionary Someone or something that is authoritative gives an impression of power and importance and is likely to be obeyed He has a commanding presence and a deep, authoritative voice Her smile was warm but authoritative The man pushed his way authoritatively through the crowd