authoritative

au·thor·i·ta·tive

adj
\ə-ˈthär-ə-ˌtā-tiv, ȯ-, -ˈthȯr-\

Definition of AUTHORITATIVE

1

a : having or proceeding from authority : official <authoritative church doctrines> b : clearly accurate or knowledgeable <an authoritative critique>

2

: dictatorial 2

— au·thor·i·ta·tive·ly adverb

— au·thor·i·ta·tive·ness noun

Examples of AUTHORITATIVE

1. The book is an authoritative guide to the city's restaurants.
2. His manner is polite but authoritative.
3. She addressed the group with an authoritative voice.

First Known Use of AUTHORITATIVE

1605

Related to AUTHORITATIVE

Synonyms: definitive, classic, classical, magisterial

Related Words: conclusive, decisive; approved, official, sanctioned; accurate, correct; complete, comprehensive, exhaustive, thorough

Near Antonyms: helpless, impotent, powerless, weak; incapable, unable

see all synonyms and antonyms

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Rhymes with AUTHORITATIVE

accelerative, accumulative, administrative, alliterative, assimilative, associative, collaborative, commemorative, communicative, cooperative, corroborative, deliberative, determinative, illuminative, investigative, multiplicative, originative, recuperative, regenerative