officialdom vs official

officialdom and official both are nouns.

Word	Noun	Adjective	Verb	Adverb
officialdom	Yes	No	No	No
official	Yes	Yes	No	No

officialdom (noun)	official (noun)
people elected or appointed to administer a government	someone who administers the rules of a game or sport
	a worker who holds or is invested with an office

officialdom (adjective)	official (adjective)
	having official authority or sanction
	of or relating to an office
	verified officially
	(of a church) given official status as a national or state institution
	conforming to set usage, procedure, or discipline