The phrase "art a witness" typically refers to creating or being a witness to art. However, its antonyms could include phrases like "ignore art", "avoid art", or "deny art". These phrases suggest a lack of appreciation or recognition for artistic expression and creativity. Other possible antonyms might be "disbelieve art", "dismiss art", or "reject art", indicating a refusal to acknowledge the value and impact of art in one's life. While the antonyms of "art a witness" do not necessarily carry negative connotations, they do imply a lessened awareness or importance given to the role of art in our society and personal experiences.