High-brow is a term often used to describe things that are refined, sophisticated, or intellectual. However, there are several other synonyms that can be used to describe this type of culture or person. The word 'erudite' is often used to describe someone who has extensive knowledge or learning in a particular field. Other synonyms include 'cultured,' 'polished,' 'educated,' 'intellectual,' and 'sophisticated.' All these words describe someone who possesses high levels of refinement and class, often through education and exposure to the arts and culture. While all these terms have their unique nuances and connotations, they all paint a picture of someone who is highly knowledgeable and cultured.