Undulating refers to a wavy or rolling motion in something. When we talk about things that are more undulant, we are referring to something that has even more of this characteristic motion. Some synonyms for the word "more undulant" could include words such as rolling, wavy, rippling, billowing, and swaying. These words all describe motion that is similar to undulating. They bring to mind images of gentle ocean waves, rolling hills, or the movement of fabric in the wind. These words can be used to convey a sense of soothing, peaceful motion that is often associated with nature and the natural world.