Mag`is*te"ri*al (?), a. [L. magisterius magisterial. See Master.]
Of or pertaining to a master or magistrate, or one in authority; having the manner of a magister; official; commanding; authoritative. Hence: Overbearing; dictatorial; dogmatic.
When magisterial duties from his home
Her father called.
We are not magisterial in opinions, nor, dictator-like, obtrude our notions on any man.
Sir T. Browne.
Pretenses go a great way with men that take fair words and magisterial looks for current payment.
2. Alchem. & Old Chem.
Pertaining to, produced by, or of the nature of, magistery. See Magistery, 2.
Syn. -- Authoritative; stately; august; pompous; dignified; lofty; commanding; imperious; lordly; proud; haughty; domineering; despotic; dogmatical; arrogant. -- Magisterial, Dogmatical, Arrogant. One who is magisterial assumes the air of a master toward his pupils; one who is dogmatical lays down his positions in a tone of authority or dictation; one who is arrogant in sults others by an undue assumption of superiority. Those who have long been teachers sometimes acquire, unconsciously, a manner which borders too much on the magisterial, and may be unjustly construed as dogmatical, or even arrogant.
© Webster 1913.