Which finish is described as having a low luster?

The finish described as having a low luster is best represented by a matte finish. A matte finish has minimal sheen and typically diffuses light rather than reflecting it, which results in a soft appearance that lacks shine. This type of finish is often preferred for its ability to hide imperfections and create a more subdued aesthetic.

In contrast, other finishes, like gloss and high-gloss, have a significantly higher level of sheen, resulting in reflective surfaces that can enhance color vibrancy and detail but may also highlight flaws. Semi-gloss offers a middle ground with some shine, but it is still visibly more lustrous than a matte finish. Therefore, a matte finish is the most accurate descriptor for a low-luster surface in various applications, including paint, photography, and graphic design.