authoritative

[ uh-thawr-i-tey-tiv, uh-thor- ]
/ əˈθɔr ɪˌteɪ tɪv, əˈθɒr- /
SEE SYNONYMS FOR authoritative ON THESAURUS.COM

adjective

having due authority; having the sanction or weight of authority: an authoritative opinion.
substantiated or supported by documentary evidence and accepted by most authorities in a field: an authoritative edition of Shakespeare; an authoritative treatment of a subject.
having an air of authority; accustomed to exercising authority; positive; peremptory; dictatorial: said with an authoritative air.

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weal
well-being, prosperity, or happiness.
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Origin of authoritative

First recorded in 1595–1605; authorit(y) + -ative

OTHER WORDS FROM authoritative

Words nearby authoritative

author's alteration, authoress, authoring, authoritarian, authoritarian personality, authoritative, authority, authority control, authority figure, authority file, authorization
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for authoritatively

British Dictionary definitions for authoritatively

authoritative
/ (ɔːˈθɒrɪtətɪv) /

adjective

recognized or accepted as being true or reliablean authoritative article on drugs
exercising or asserting authority; commandingan authoritative manner
possessing or supported by authority; officialan authoritative communiqué

Derived forms of authoritative

authoritatively, adverbauthoritativeness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012