The phrase "art intimate" typically refers to a person who has a deep knowledge and appreciation of art. However, there are several synonyms that could be used to describe such a person. For example, one could use the terms "art connoisseur," "art aficionado," or "art expert." Another option could be the phrase "art lover," which implies a strong emotional attachment and passion for art. Other possible synonyms include "art enthusiast" or "art admirer." Ultimately, the choice of synonym will depend on the specific context and desired tone of the writing or conversation.