Classy
Part of speech: adjective
Definition: Elegant, highly stylish or fashionable. Of a superior type; especially, exhibiting admirable personal qualities
Example sentence: I like the word 'indolence'. It makes my laziness seem classy.
Stylish
Part of speech: adjective
Definition: Having elegance or taste or refinement in manners or dressHaving a particular directing style or cinematography.
Example sentence: A villain can be stylish, and his actions don't have to be explained. Heroes are boring in comparison, even anti-heroes, as there's always a justification for their bad actions.