What term describes a non-mirror image with unequal distribution of weight and/or length in design?

The term that describes a non-mirror image with unequal distribution of weight and/or length in design is asymmetry. Asymmetrical design is characterized by the deliberate arrangement of elements that are not identical on either side, creating a visual interest and dynamic appeal. This type of balance can generate a sense of movement and is often used in various art forms, including fashion, interiors, and graphic design.

In contrast, symmetry refers to a balanced arrangement where elements are identical or mirror each other, creating harmony and a static feeling. Proportion pertains to the relationships between the sizes of different elements in design, ensuring they are visually appealing when viewed together. Balance, while related to quantity and distribution, is a broader term that can refer to either symmetrical or asymmetrical arrangements. Thus, the distinct nature of asymmetry lies in its capacity to present a unique and engaging design through unequal distribution.