The phrase "more lowset" is not common in modern English, and it may be more helpful to consider synonyms for "low" or "lower." Some synonyms for "low" include "short," "diminutive," "small," "petite," "little," and "undersized." Synonyms for "lower" may include "reduced," "depressed," "lessened," "dropped," "inferior," or "subordinate." Depending on the context, other synonyms may also be appropriate, such as "subdued," "quiet," or "subdued." Overall, it's important to consider the exact meaning and tone we want to convey when choosing synonyms to replace or complement "more lowset".