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

There was likewise nothing startling in Bacons view of the Fathers, and their knowledge and authoritativeness.
The Mediaeval Mind (Volume II of II) Henry Osborn Taylor

The great difficulty that authoritativeness has to contend with is some other authoritativeness.
The Book of the Damned Charles Fort

In this manner arises the authoritativeness of moral requirements, as designating the latest and highest order of means.
A Review of the Systems of Ethics Founded on the Theory of Evolution C. M. Williams

Dazed and awed by the man’s authoritativeness the boys ran down to the water to see what was the trouble.
Si Klegg, Book 1 (of 6) John McElroy

authoritativeness is characteristic of His mode of teaching.
Modern Skepticism C. J. Ellicott

He had a simple and direct way with them, equally removed from both petting and authoritativeness.
Hugh Arthur Christopher Benson

And this idea of authoritativeness is one element in the abstract consciousness of duty.
The Data of Ethics Herbert Spencer

recognized or accepted as being true or reliable: an authoritative article on drugs
exercising or asserting authority; commanding: an authoritative manner
possessing or supported by authority; official: an authoritative communiqué

c.1600, “dictatorial” (a sense now restricted to authoritarian), from Medieval Latin authoritativus (see authority). Meaning “possessing authority” is recorded from 1650s; that of “proceeding from proper authority” is from 1809. Related: Authoritatively; authoritativeness.


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  • Authority control

    the establishment and maintainance of consistent forms of terms, as of names, subjects, and titles, to be used as headings in bibliographic records.

  • Authority figure

    a person whose real or apparent authority over others inspires or demands obedience and emulation: Parents, teachers, and police officers are traditional authority figures for children. Contemporary Examples Muehl was of course the authority figure, with all resultant perks. The Life and Art of Radical Provocateur—and Commune Leader—Otto Muehl Anthony Haden-Guest September 21, 2014 The […]

  • Authority file

    a file, either on cards or in machine-readable format, in which decisions involving bibliographic records, particularly for form of entry, are recorded to establish a precedent or rule for subsequent decisions and to provide for consistency of entries.

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