The phrase "art commensurate" refers to the idea that a piece of artwork is proportional or proportional in size or scope to its purpose. However, there are several antonyms for this phrase, including art disproportionate, art inadequate, and art incongruous. Art that is disproportionate may be too big or too small for its intended purpose, while art that is inadequate may lack the necessary impact or relevance. Art that is incongruous may be inappropriate or out of place, lacking the necessary context or background to be truly effective. Ultimately, the antonyms for "art commensurate" are words that describe art that fails to meet its intended goal or purpose.