The term "art hand" typically refers to skilled hands that are adept at creating fine art or crafts. Some potential antonyms for art hand might include clumsy hand, unskilled hand, or inexpert hand. These words suggest a lack of dexterity or proficiency when it comes to creating art or working with materials. Other antonyms might focus on the opposite end of the spectrum, such as robotic hand or machine hand. These terms imply a highly precise, mechanical approach that may lack the creativity and individuality of a human's touch. Overall, the use of antonyms can help to highlight the unique qualities and limitations of art hands and their abilities.