responsive vs response

responsive is not a noun while response is a noun.

Word	Noun	Adjective	Verb	Adverb
responsive	No	Yes	No	No
response	Yes	No	No	No

responsive (noun)	response (noun)
	a bodily process occurring due to the effect of some antecedent stimulus or agent
	the manner in which an electrical or mechanical device responds to an input signal or a range of input signals
	the speech act of continuing a conversational exchange
	a statement (either spoken or written) that is made to reply to a question or request or criticism or accusation
	the manner in which something is greeted
	a phrase recited or sung by the congregation following a versicle by the priest or minister
	a result

responsive (adjective)	response (adjective)
readily reacting or replying to people or events or stimuli; showing emotion
containing or using responses; alternating
reacting to a stimulus