The term "most representational" refers to something that is a true depiction or reflection of a particular idea, concept or object. Antonyms for this term could include "least representational," which would indicate something that is not a true depiction or reflection of the idea, concept or object. Other antonyms could include "abstract," "unrealistic," "inaccurate," "unfaithful," "subjective" or "symbolic," all of which suggest a lack of fidelity to the original source. In contrast to something that is "most representational," these antonyms indicate a departure from reality, a creative interpretation, or a bias towards a particular interpretation.