authoritative


au·thor·i·ta·tive

adjective \ə-ˈthär-ə-ˌtā-tiv, -, -ˈthr-\

: having or showing impressive knowledge about a subject

: having the confident quality of someone who is respected or obeyed by other people

Full 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

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