authoritatively

authoritative | American Dictionary

authoritative
adjective
us/əˈθɔr·əˌteɪ·t̬ɪv, əˈθɑr-/
having the power of special knowledge, or (of a person) showing the confidence of having special knowledge:
an authoritative manner
Her opinion on the subject was considered authoritative.

authoritatively

adverbus/əˈθɔr·əˌteɪt̬·ɪv·li, əˈθɑr-/
He spoke authoritatively about police work.

Examples of authoritative

authoritative
The book comes across as authoritative, informative and practical.
However, the papers fall broadly into two categories : authoritative overviews of a particular subject or more focussed novel contributions.
Another form of translation is the one taking place at interorganisational level in connection with authoritative decision-making.
Do we want a friendly agent or an authoritative agent?
His thorough knowledge of the morphosyntax of these languages greatly contributes to his authoritative use of secondary sources.
They do so by offering reasons or by authoritative markings.
On that theor y, it will be recalled, a precedent can be authoritative even though it is ultimately over ruled.
We might add executive authority to account for authoritative figures like police officers and tax officials.
Neither theoretical pronouncements not practical directives have to be exclusionar y if they are to be, or be treated as being, authoritative.
Likewise, those laws and rules are subject to deliberate alteration through standard procedures undertaken by the people in the authoritative positions.
By contrast, the precepts of custom emerge and develop gradually instead of being brought into existence through discrete and authoritative acts.
All they need to resolve their dispute is the arbitrator's decision-appealing to the plaintiff's rule as an authoritative rule makes no additional difference to them.
Precedents cannot be normatively authoritative for any behavior.
Pleasingly, the book's written style is clear and authoritative.
Let us assume this case has been handed down in a legal system that treats the decisions of its highest court as authoritative precedents.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.