das Wörterbuch Englisch Minus Englisch

behaving or speaking in a confident determined way that makes people respect and obey you Englisch:

an authoritative tone of voice

They long for some authoritative study that will provide an answer.

authoritative = is respected and listened to by others

many corporations still take an authoritative view of work,

My dictionary is the most authoritative work on aviation english vocabluary. He has a commanding presence and an authoritative voice.

Some doctors are authoritative and lecture people about their lifestyles.

... to provide accurate and authoritative information in regard to...