authoritative
suomi-englanti sanakirjaauthoritative englannista suomeksi
vankasti hyväksytty, arvovaltainen, auktoritatiivinen
virallinen
authoritative englanniksi
Arising or originating from a figure of authority
''The authoritative rules in this school come not from the headmaster but from the aged matron.''
Highly accurate or definitive; treated or worthy of treatment as a scholarly authority
''This book is the world's most authoritative guide to insect breeding habits.''
Having a commanding style.
''He instructed us in that booming, authoritative voice of his.''
(quote-book) groups are considered prototypical for this model.