"Most tenanted" can be replaced with a variety of synonyms that reflect high levels of occupancy or utilization. These include phrases such as "most densely inhabited," "most populous," "most heavily populated," or "most commonly occupied." Other potential synonyms to convey the idea of a high degree of occupancy or use might include phrases such as "most frequently inhabited," "most frequently utilized," or "most actively occupied." Depending on the context in which the word "most tenanted" appears, other synonyms could include such as "most frequently visited," "most commonly accessed," or "most frequently patronized." The choice of synonym will depend on the intended meaning and tone of the sentence or phrase in which it appears.