When it comes to describing a person who showers frequently or extensively, there are several synonyms that can be used instead of "most showering." Some possible alternatives include "prolific showerer," "frequent bather," "avid cleanser," "diligent washroom user," and "dedicated rinse-taker." Each of these terms conveys a similar message to "most showering" but may add a different inflection or emphasis depending on the context and tone of the sentence. By using a range of synonyms, writers can avoid repetition and create a more varied and engaging text.