writing style vs drama

writing style and drama both are nouns.

Word	Noun	Adjective	Verb	Adverb
writing style	Yes	No	No	No
drama	Yes	No	No	No

As nouns, drama is a hyponym of writing style; that is, drama is a word with a more specific, narrower meaning than writing style:

Other hyponyms of writing style include prose, form, poesy, poetry, verse, satire, steampunk.

writing style (noun)	drama (noun)
a style of expressing yourself in writing	the quality of being arresting or highly emotional
	the literary genre of works intended for the theater
	a dramatic work intended for performance by actors on a stage
	an episode that is turbulent or highly emotional