histrionic vs melodramatic

histrionic and melodramatic both are adjectives.

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

As adjectives, histrionic and melodramatic are synonyms defined as:

histrionic and melodramatic: characteristic of acting or a stage performance; often affected

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