"conformable to approved fashion or taste," 1795, from style (n.) + -ish. Good is understood. Related: Stylishly; stylishness.
the stylish resort of Gstadd
a little less posh but every bit as stylish as Lord Peter Wimsey
stutter
sty
Stygian
style
stylet
stylish
stylist
stylistic
stylite
stylize
stylus