government activity vs unitary

government activity is a noun but unitary is not a noun.

Word	Noun	Adjective	Verb	Adverb
government activity	Yes	No	No	No
unitary	No	Yes	No	No

government activity (noun)	unitary (noun)
the act of governing; exercising authority

government activity (adjective)	unitary (adjective)
	characterized by or constituting a form of government in which power is held by one central authority
	of or pertaining to or involving the use of units
	relating to or characterized by or aiming toward unity
	having the indivisible character of a unit