- 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.
Origin of authoritative
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for unauthoritative
He gives no evidence, and the statement seems to be merely a repetition from earlier and unauthoritative writers.Shakespearean Playhouses
Joseph Quincy Adams
It must have unity enough for that; it must be much more than a mere leisurely, unauthoritative conference of representatives.What is Coming?
H. G. Wells
- 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
Word Origin and History for unauthoritative
Online Etymology Dictionary, © 2010 Douglas Harper