The phrase "most crenated" typically refers to a surface or edge that is scalloped, serrated or jagged. When looking for synonyms, one can use terms such as "rippled," "unlevelled," "uneven," "corrugated," "notched," or "toothed." Other options include "grooved," "creased," "indented," "furrowed," and "wrinkled." These words capture the visual appearance of a surface that is not smooth, but rather has a rough or textured quality. Depending on the context, certain synonyms may be more fitting than others, but all of these words convey the general idea of a crenated surface.