transcription, транскрипция: [ ɔ:θɒrɪtətɪv, AM əθɔ:rɪteɪtɪv ]
1.
Someone or something that is authoritative gives an impression of power and importance and is likely to be obeyed.
He has a commanding presence and deep, authoritative voice...
ADJ
2.
Someone or something that is authoritative has a lot of knowledge of a particular subject.
The first authoritative study of polio was published in 1840...
ADJ