Art a par is a phrase that means "on equal footing" or "in a state of equality." Its antonyms are words or phrases that convey an unequal or uneven state, such as "unequal," "inferior," "subordinate," "subpar," "substandard," "uneven," "dissimilar," "unequivalent," "unmatched," and "unbalanced." These words express a lack of balance, equality, or similarity between two or more entities. For instance, if two competing teams are not on art a par with each other, one is considered superior to the other, and thus, they cannot be said to be on equal footing. In conclusion, understanding the antonyms of art a par helps individuals to describe unequal or uneven states more accurately.