The phrase "most vulgarian" denotes a sense of indecency, crudeness, and lack of elegance. To look for antonyms or rather opposite words for this phrase, we can explore the words that describe sophistication, class, and refinement. Words like elegant, tasteful, cultured, refined, polished, urbane, stylish, and sophisticated can act as antonyms to the phrase "most vulgarian." These words convey a sense of classiness and maturity in contrast to the lack of sophistication present in the term "most vulgarian." These antonyms bring forth a contrasting idea that exudes subtlety, grace, and finesse in a person's behavior, taste, or aesthetic preferences.