authoritative

adjective

au·​thor·​i·​ta·​tive ə-ˈthȯr-ə-ˌtā-tiv 

ȯ-,

-ˈthär-

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

Synonyms

• classic
• classical
• definitive
• magisterial

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

With a versatile and emotionally resonant voice, he’s known for delivering the smooth sophistication of jazz and the commanding presence needed for authoritative reads. —William Jones, USA Today, 17 May 2025

When executed well, a strong content strategy creates a consistent, authoritative presence that builds both trust and familiarity, inviting potential clients to take the next step. —Expert Panel®, Forbes.com, 14 May 2025

Their annual report is widely viewed by child safety experts as an authoritative snapshot of what is believed to be the escalating problem of child exploitation online. —Ben Goggin, NBC news, 8 May 2025

The change appeared in the 2025 edition of the Vatican's Annuario Pontificio, the authoritative yearbook of the Holy See. —Jesus Mesa, MSNBC Newsweek, 6 May 2025

Word History

Etymology

authority + -ative

First Known Use

1606, in the meaning defined at sense 1

Rhymes for authoritative

• accommodative
• accumulative
• adjudicative
• administrative
• agglutinative
• ameliorative
• appreciative
• assimilative
• associative
• collaborative
• cooperative
• deliberative

Kids Definition

authoritative

adjective

au·​thor·​i·​ta·​tive ə-ˈthär-ə-ˌtāt-iv 

ȯ-,

-ˈthȯr-

: having or coming from authority

authoritatively adverb

authoritativeness noun