"Funkiest" is a colloquial term widely used to describe something that is extremely cool, unique, and avant-garde. However, if you want to avoid using the word "funky" in your writing, you can consider using synonyms such as "groovy," "jazzy," "hip," "radical," "outlandish," "mind-blowing," "edgy," "urban," "soulful," or "eclectic." These words can effectively convey the same idea in a more refined and diverse manner, allowing you to add depth and variety to your writing. Whether you're writing a blog post or crafting a creative piece, incorporating these synonyms can help you enhance your language and better engage your readers.