authoritative

adjective

au·​thor·​i·​ta·​tive ə-ˈthȯr-ə-ˌtā-tiv How to pronounce authoritative (audio)
ȯ-, 
-ˈthär-
Synonyms of authoritative
1
: having, marked by, or proceeding from authority
authoritative church doctrines
an authoritative decision
an authoritative manner
2
: possessing recognized or evident authority : clearly accurate or knowledgeable
an authoritative critique
an authoritative source of information
authoritatively adverb
authoritativeness noun

Examples of authoritative in a Sentence

The book is an authoritative guide to the city's restaurants. His manner is polite but authoritative. She addressed the group with an authoritative voice.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Our colleague Helen Branswell was a renowned infectious disease reporter who earned the respect and admiration of experts and public health officials with her authoritative, prescient reporting on the flu, polio, Ebola and the Covid-19 pandemic. — Elaine Chen, STAT, 23 Oct. 2026 Hollander plays Judge Jack Taylor, an authoritative man who weighs his words carefully, possessing both the warmth and charm of a country preacher and the cold edge of a cult leader. — Matt Grobar, Deadline, 22 Oct. 2026 This excellent volume contains a series of concise and authoritative essays on key aspects of the Ghetto’s early history, written by leading experts in the field. — Literary Hub, 16 Oct. 2026 The new system will organize types of data that proved difficult to categorize in the past — such as the ways firms make difficult decisions — to make the rankings more authoritative. — Benjamin Mullin, New York Times, 15 Oct. 2026 See All Example Sentences for authoritative

Word History

Etymology

authority + -ative

First Known Use

1606, in the meaning defined at sense 1

Time Traveler
The first known use of authoritative was in 1606

Browse Nearby Words

Cite this Entry

“Authoritative.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/authoritative. Accessed 27 Oct. 2026.

Kids Definition

authoritative

adjective
au·​thor·​i·​ta·​tive ə-ˈthär-ə-ˌtāt-iv How to pronounce authoritative (audio)
ȯ-, 
-ˈthȯr-
: having or coming from authority
authoritatively adverb
authoritativeness noun
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