Magisterial Reformatin and Radical Reformation

My teacher gave us a magisterial account of the history of the English language.

• The most telling thing about the old princess is her magisterial power.
• Among the completely new material in this edition is Kitses's magisterial account of the work of the greatest of Western Directors John Ford.
• The interpretation is quite simplymagisterial, in keeping with the music being performed; the impact is unforgettable.

there are five syllables. mag/is/ter/i/al

A bad translation of the Spanish conferencia magistral; use master conference.