mag·is·te·ri·al 
/ˌmæʤəˈstirijəl/ adjective
/ˌmæʤəˈstirijəl/ adjective 1 [more magisterial; most magisterial] formal : showing impressive knowledge about a subject
▪ His book is a magisterial [=authoritative] study of the artist. 2 [more magisterial; most magisterial] formal : having the confident quality of someone who expects to be obeyed by other people
▪ He spoke with a magisterial tone. 3 : of or relating to a magistrate
▪ magisterial duties
▪ His book is a magisterial [=authoritative] study of the artist.
▪ He spoke with a magisterial tone.
▪ magisterial duties
— mag·is·te·ri·al·ly /ˌmæʤəˈstirijəli/ adverb
/ˌmæʤəˈstirijəli/ adverb
