What is the adverb of creative?

There isn't a single, direct adverb form of "creative". However, you can use various adverbs depending on the specific meaning you want to convey:

To describe a process:

* Creatively: This is the most common and straightforward option. "He solved the problem creatively."

* Imaginatively: Emphasizes the use of imagination. "She designed the costume imaginatively."

* Originially: Focuses on uniqueness and novelty. "He wrote an originally structured poem."

To describe a person or thing:

* Creatively: "She is a creatively gifted artist."

* Imaginatively: "The movie is imaginatively filmed."

* Ingeniously: Emphasizes cleverness and ingenuity. "She came up with an ingenious solution."

The best choice depends on the specific context and the nuance you want to express.