magisterial

adjective

1. of, relating to, or befitting a master; authoritative; weighty; of importance or consequence: a magisterial pronouncement by the director of the board.
2. imperious; domineering: a magisterial tone of command.
3. of or befitting a magistrate or the office of a magistrate: The judge spoke with magisterial gravity.
4. of the rank of a magistrate: magisterial standing.

adjective

1. commanding; authoritative
2. domineering; dictatorial
3. of or relating to a teacher or person of similar status
4. of or relating to a magistrate

adj.1630s, from Medieval Latin magisterialis “of or pertaining to the office of magistrate, director, or teacher,” from Late Latin magisterius “having authority of a magistrate,” from magister “chief, director” (see master (n.)). Related: Magisterially.