Dictionary

authoritative

adjective au·thor·i·ta·tive \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
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First Known Use of AUTHORITATIVE

1605
AUTHORITATIVENESS Defined for Kids

authoritative

adjective au·thor·i·ta·tive \ə-ˈthr-ə-ˌtā-tiv\

Definition of AUTHORITATIVE for Kids

:  having or coming from authority <an authoritative order>
au·thor·i·ta·tive·ly adverb

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