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authoritative
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au·thor·i·ta·tive

adjective \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
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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

Rhymes with AUTHORITATIVE

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

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