authoritative
authori|ta|tive /ɔːθ'ɒrɪtətɪv, AM əθ'ɔːrɪteɪtɪv/
1 [ADJ]
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...
2 [ADJ]
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...
1 [ADJ]
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...
2 [ADJ]
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...