The antonyms for "art accessible" include words like obscure, unapproachable, and exclusive. These words connote a sense of inaccessibility and exclusivity, suggesting that art is only available to a select few who are wealthy or who possess certain knowledge or connections. Other antonyms could include words like unintelligible or impenetrable, which imply that art is difficult to understand or interpret. These terms are antithetical to the idea of art as accessible or open to all, suggesting instead that it is an elitist pursuit reserved only for the privileged few.