climactic vs climax

climactic is not a noun while climax is a noun.

Word	Noun	Adjective	Verb	Adverb
climactic	No	Yes	No	No
climax	Yes	No	Yes	No

climactic (noun)	climax (noun)
	the moment of most intense pleasure in sexual intercourse
	the decisive moment in a novel or play
	arrangement of clauses in ascending order of forcefulness
	the highest point of anything conceived of as growing or developing or unfolding
	the most severe stage of a disease

climactic (adjective)	climax (adjective)
consisting of or causing a climax

climactic (verb)	climax (verb)
	end, especially to reach a final or climactic stage