The word "most assaulted" may have negative connotations, making it difficult to find appropriate synonyms. However, here are a few possibilities:
1. Most targeted: implies the subject is being singled out or chosen for attack.
2. Most vulnerable: suggests the subject is easily taken advantage of or at risk.
3. Most victimized: denotes someone who has suffered harm or injury.
It's important to note that these synonyms are not interchangeable and may have slightly different nuances. When choosing a synonym, consider the context and choose the word that best conveys the intended meaning.