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authoritative

au·thor·i·ta·tive [ ə tháwrə tàytiv ]

adjective

Definition:

1. reliable: convincing, reliable, backed by evidence, and showing deep knowledge

2. backed by authority: backed by an established and accepted authority

3. showing authority: showing confidence in or the expectation of being obeyed

au·thor·i·ta·tive·ly adverb

au·thor·i·ta·tive·ness noun

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