The word "unvulgar" implies refinement, sophistication, and elegance. Therefore, the antonyms for this word would be vulgar, indecorous, and coarse. The opposite of unvulgar is something that lacks grace and style, and instead, is considered crude and unrefined. Other antonyms of "unvulgar" may include tasteless, uncultivated, and rustic. Using these words as antonyms can help convey the opposite meaning of unvulgar in writing, expressing a sense of disdain or disappointment towards something that lacks finesse and charm. In contrast, the use of the word "unvulgar" can denote a high degree of class, sophistication, and elegance.