administrative vs administer

administrative is an adjective but administer is not an adjective.

Word	Noun	Adjective	Verb	Adverb
administrative	No	Yes	No	No
administer	No	No	Yes	No

administrative (adjective)	administer (adjective)
of or relating to or responsible for administration

administrative (verb)	administer (verb)
	give or apply (medications)
	administer or bestow, as in small portions
	perform (a church sacrament) ritually
	work in an administrative capacity; supervise or be in charge of
	direct the taking of