General synonyms:
* Imaginative
* Inventive
* Original
* Innovative
* Artistic
* Ingenious
* Inspired
* Resourceful
More specific synonyms:
* For writing: Eloquent, articulate, expressive, poetic
* For design: Stylish, elegant, visionary, avant-garde
* For problem-solving: Innovative, resourceful, strategic, ingenious
* For business: Entrepreneurial, visionary, pioneering
The best synonym to use will depend on the specific situation and what you want to emphasize.