"Swinish multitude" is a derogatory term that refers to a large group of people who are considered to be selfish, rude, and ignorant. There are several synonyms that can be used to describe such a group including "rabble", "mob", "crowd", "horde", "masses", "proletariat", "plebs", "commoners", and "populace". These words convey a negative connotation and are often used to criticize people who are seen as ignorant or lacking in taste or judgment. While it is important to be respectful and kind towards others, it is also necessary to be critical and discerning when necessary, especially when dealing with issues of social justice and inequality.