magisterial


magisterial
adjective
1 a magisterial way of behaving or speaking shows that you think you have authority: his magisterial voice
2 a magisterial book is written by someone who has very great knowledge about a subject: his magisterial study of the First World War
3 connected with or done by a magistrate: magisterial district
— magisterially adverb

Longman dictionary of contemporary English. 2004.

Synonyms: