objectionable vs offensive

objectionable is not a noun while offensive is a noun.

Word	Noun	Adjective	Verb	Adverb
objectionable	No	Yes	No	No
offensive	Yes	Yes	No	No

objectionable (noun)	offensive (noun)
	the action of attacking an enemy

objectionable (adjective)	offensive (adjective)
causing disapproval or protest	unpleasant or disgusting especially to the senses
liable to objection or debate; used of something one might take exception to	causing anger or annoyance
	for the purpose of attack rather than defense
	morally offensive
	violating or tending to violate or offend against
	causing or able to cause nausea