When it comes to describing someone who appears unkempt or untidy, there are several synonyms that can be used instead of "most ungroomed." Some options include "disheveled," "unkempt," "slovenly," "haggard," "unkempt," "unkept," "disordered," "casual," and "careless." These words can be used to describe someone's appearance, hair, clothing, overall presentation or demeanor. They convey a sense of disarray or a lack of attention to personal grooming. While the word "most ungroomed" is a fairly specific term, utilizing other synonyms can make descriptions more varied and interesting.