melodramatic vs melodrama

melodramatic is not a noun while melodrama is a noun.

Word	Noun	Adjective	Verb	Adverb
melodramatic	No	Yes	No	No
melodrama	Yes	No	No	No

melodramatic (noun)	melodrama (noun)
	an extravagant comedy in which action is more salient than characterization

melodramatic (adjective)	melodrama (adjective)
characteristic of acting or a stage performance; often affected
having the excitement and emotional appeal of melodrama