an elegant black outfit: stylish, graceful, tasteful, sophisticated, classic, chic, smart, fashionable; refined, beautiful, lovely, charming, artistic, aesthetic; cultivated, polished.

an IMAGINATIVE SOLUTION: creative, visionary, inspired, inventive, resourceful, ingenious; original, innovative, unorthodox, unconventional; fantastic.  

the boundless ingenuity of da Vinci: INVENTIVENESS,

creativity, imagination, innovation, enterprise, insight, perception, intuition, inspiration; finesse, flair, artistry; genius, intelligence, cleverness; talent, skill, mastery; informal thinking outside the box.

advocating progress, change, improvement, and reform, as opposed to things remaining as they are: a progressive marketing strategy.  

ADAPTABLE, flexible, all-around, multifaceted, multitalented, resourceful, adjustable, multipurpose.  

FASHIONABLE, in fashion, in vogue, popular, up-to-date, modern, all the rage, à la mode, trendsetting; stylish, chic, designer; the in thing, hip, now, happening; what everyone wants.

ANTONYNS unfashionable.