magisterial

adjective

1 a magisterial pronouncement:

authoritative, masterful, lordly, judge-like.

2 his magisterial style of questioning:

domineering, dictatorial, autocratic, imperious, bossy, overbearing, peremptory, pompous, lofty, overweening, high-handed, arrogant, haughty;

confident, self-confident, overconfident, supercilious, patronizing.

▷antonyms hesitant, tentative.

magisterial Oxford Dictionary of English