chichi

nouns

someone who dresses in a trendy fashionable way
is a type of (narrower)
a person who dresses in a particular way
"she's an elegant dresser"; "he's a meticulous dresser"
elegance by virtue of being fashionable

adjectives

affectedly trendy and fashionable
is similar to
having elegance or taste or refinement in manners or dress
"a little less posh but every bit as stylish as Lord Peter Wimsey"; "the stylish resort of Gstadd"