high-and-mighty vs magisterial

high-and-mighty and magisterial both are adjectives.

Word	Noun	Adjective	Verb	Adverb
high-and-mighty	No	Yes	No	No
magisterial	No	Yes	No	No

As adjectives, high-and-mighty and magisterial are synonyms defined as:

high-and-mighty and magisterial: offensively self-assured or given to exercising usually unwarranted power

Other synonyms of high-and-mighty include autocratic, bossy, dominating, peremptory.

high-and-mighty (adjective)	magisterial (adjective)
offensively self-assured or given to exercising usually unwarranted power	of or relating to a magistrate
	used of a person's appearance or behavior; befitting an eminent person
	offensively self-assured or given to exercising usually unwarranted power