The term "art lofty" essentially means art that is elevated, grand, or sophisticated. The antonyms for this term would, therefore, describe art that is simple, ordinary, or unrefined. Some possible antonyms for "art lofty" might include "unsophisticated art" or "basic art." Other antonyms could include "lowbrow art," "popular art," or "naive art." Essentially, any term that indicates a lack of complexity, refinement, or sophistication could be considered an antonym for "art lofty." These terms may be used to describe art that is more accessible, relatable, or appealing to a broader audience, rather than just to those with a highly refined aesthetic taste.