authoritative
英 [ɔː'θɒrɪtətɪv; -,teɪtɪv]
美[ə'θɔrətetɪv]
	    - adj. 有权威的;命令式的;当局的
 
英英释意
- 1. having authority or ascendancy or influence;
 - "an important official"
 - "the captain's authoritative manner"
 
- 2. of recognized authority or excellence;
 - "the definitive work on Greece"
 - "classical methods of navigation"
 
- 3. sanctioned by established authority;
 - "an authoritative communique"
 - "the authorized biography"