Authoritative

adjective
ə'θɔrɪ,teɪtɪv

Adjective

  • having authority or ascendancy or influence

    the captain's authoritative manner

    Similar:Important
  • sanctioned by established authority

    an authoritative communique

    Similar:AuthorisedAuthorized
  • of recognized authority or excellence

    Similar:Definitive

Dictionary Validity

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North American Scrabble (NWL2020)
NASPA