The term "art guard" refers to individuals responsible for maintaining and protecting valuable artwork collections. Antonyms for this phrase may include "art vandal," "art thief," or "art looter." These terms describe individuals who act destructively towards artwork, stealing or damaging pieces for their own benefit or to inflict harm. Other antonymic terms might include "non-art guard," "casual art observer," or "art novice." These phrases differentiate individuals who have no responsibility for the care or protection of art and may not have much knowledge or experience with it. Overall, antonyms for "art guard" describe individuals who have no connection to or care for art, and may be harmful or uninterested in its preservation.