The phrase 'very clean' is often used to describe a space or object that is spotless, hygienic, or free of dirt and grime. However, it is always good to have a few synonyms to make your writing more descriptive. Some synonyms for 'very clean' include pristine, immaculate, flawless, spotless, sparkling, polished, gleaming, tidied up, sanitized, and scrubbed. These words can add a touch of depth to your writing, enabling you to convey how perfect and organized a place or item is. Using more precise language in your writing can make it more interesting and informative for readers.