Magisterial

Adjective
magisterial
 * 1) Of or pertaining to a master or magistrate, or one in authority
 * 2) Having the manner of a magister; official; commanding; authoritative. Hence: overbearing; dictatorial; dogmatic.
 * 3) Pertaining to, produced by, or of the nature of, magistery.

Adverbs for Magisterial
officiously; ostentatiously; authoritatively; arrogantly; superciliously; offensively; vex-atiously; sternly; severely; harshly; cruelly; tyrannically; rigidly; unnecessarily; ridiculously; absurdly; gravely; solemnly; droningly; coldly; strictly; intolerably; overbearingly; imperiously; pretentiously; stiffly; magnificently; ceremoniously; arbitrarily.

Thesaurus
Daedalian, U, absolute, absolutist, absolutistic, accepted, adept, adroit, approved, apt, arbitrary, arch, aristocratic, arrogant, artistic, august, authentic, authoritarian, authoritative, autocratic, banner, bloated, bossy, bravura, brilliant, capital, cardinal, cathedral, central, champion, chief, clean, clever, coordinated, courtly, crack, crackerjack, crowning, cunning, cute, daedal, deft, despotic, dexterous, dextrous, dictatorial, dignified, diplomatic, disdainful, dogmatic, dominant, domineering, elitist, ex cathedra, excellent, expert, fancy, feudal, first, focal, foremost, good, goodish, graceful, grand, grave, great, grinding, handy, headmost, hegemonic, high and mighty, high-handed, hubristic, imperative, imperial, imperious, important, imposing, ingenious, insolent, judicative, judicatorial, judicatory, judicial, judiciary, jurisdictive, kingly, leading, lordly, magistral, main, majestic, master, masterful, masterly, monocratic, neat, no mean, noble, official, oppressive, overbearing, overruling, paramount, peremptory, politic, pontifical, predominant, preeminent, preponderant, prevailing, primal, primary, prime, princely, principal, professional, proficient, puffy, queenly, quick, quite some, ranking, ready, received, regal, repressive, resourceful, royal, ruling, sedate, self-important, severe, skillful, slick, sober, solemn, some, sovereign, standard, star, stately, statesmanlike, statuesque, stellar, strict, stuffy, stylish, supercilious, supereminent, suppressive, tactful, the compleat, the complete, topflight, tyrannical, tyrannous, venerable, virtuoso, well-done, workmanlike, worthy