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Showing results for authoritative. Search instead for autoritatives.
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.

He questioned Sauer’s reliance on “Roman law sources” and other obscure citations while pointing out that more relevant, authoritative sources cut against his argument.

From Slate • Apr. 1, 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

"I got taken in the office with a policeman and Mr Phillips was being all authoritative," Karen explains.

From BBC • Feb. 23, 2026

Details of stock-market performance by sector are available from the authoritative database compiled and maintained by Kenneth French, the legendary finance professor at Dartmouth College in Hanover, N.H.

From MarketWatch • Feb. 20, 2026

Without it, he looks more his age, impossibly young and less authoritative.

From "Warcross" by Marie Lu

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.