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Showing results for authoritative.
Definitions

authoritative

[uh-thawr-i-tey-tiv, uh-thor-] / əˈθɔr ɪˌteɪ tɪv, əˈθɒr- /
ADJECTIVE
recognized as true, valid
Synonyms
STRONGEST
accurate authentic definitive dependable factual reliable scholarly trustworthy truthful
WEAK
attested authenticated circumstantiated confirmed documented faithful learned legit proven righteous sound straight from horse's mouth supported validated verified veritable
Antonyms
STRONGEST
dishonest false inaccurate irresponsible undependable unreliable untrustworthy untruthful
ADJECTIVE
domineering
Synonyms
STRONGEST
commanding decisive dominating imposing
WEAK
assertive authoritarian autocratic dictatorial doctrinaire dogmatic imperative imperious masterly officious peremptory self-assured
Antonyms
STRONGEST
indecisive
ADJECTIVE
official, authorized
Synonyms
WEAK
administrative approved bureaucratic canonical departmental ex cathedra ex officio executive imperial lawful legal legitimate magisterial mandatory ruling sanctioned sovereign supreme

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Letters, checks, emails and phone calls from supposedly authoritative organizations — banks, police, universities, Uncle Sam — can be intimidating and, if they’re offering you something for nothing, impressive.

From MarketWatch • Apr. 27, 2026

Combining Barron’s authoritative financial analysis with exclusive geopolitical intelligence powered by Oxford Analytica, each weekly edition connects how global risk, policy shifts and international developments impact your portfolio.

From Barron's • Apr. 23, 2026

The complaint also argues that Jonasi presented his translation “as authoritative fact, not comedy,” so it shouldn’t get the 1st Amendment protections afforded to parody and satire.

From Los Angeles Times • Mar. 27, 2026

Against Real, Federico Valverde's first leg hat-trick did the damage, while Vinicius Junior's double in the return game at Etihad Stadium following Bernardo Silva's sending-off rubber-stamped an authoritative performance from the 15-time champions.

From BBC • Mar. 17, 2026

She appeared flustered, and as she spoke, her normally firm and authoritative voice trembled.

From "Kaffir Boy: An Autobiography" by Mark Mathabane

Vocabulary lists containing authoritative

100 SAT Words Beginning with "A"

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

Vocabulary Video Contest (2013) - List 2

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

The Last Cuentista

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!