Unsymmetric is a word which means not symmetrical. Some of the synonyms for unsymmetric are asymmetrical, irregular, unbalanced, uneven, lopsided, distorted, disproportionate, and crooked. Irregular refers to something that does not have a uniform shape, size or color. Unbalanced refers to something that is not evenly distributed. Uneven refers to something that is not uniform or level. Lopsided refers to something that is not level in proportion on each side. Distorted refers to something that is twisted or deformed. Disproportionate refers to something that is not equal or proportionate. Crooked refers to something that is bent or not straight.