Source : Webster's Revised Unabridged Dictionary (1913)

Stylish \Styl"ish\, a.
   Having style or artistic quality; given to, or fond of, the
   display of style; highly fashionable; modish; as, a stylish
   dress, house, manner. -- {Styl"ish*ly}, adv. --
   {Styl"ish*ness}, n.

Source : WordNet®

stylishly
     adv : in a stylish manner; "she was dressed very stylishly"