- 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
Synonyms for authoritative
Examples from the Web for unauthoritative
Historical Examples of 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