The phrase "tag, rag, and bobtail" refers to an assortment of people, typically including those of the lowest social status. As such, antonyms for this phrase could include "elite," "high society," or "the upper crust." Other antonyms could include "dignified," "refined," or "cultured." These words describe individuals who are seen as respectable, sophisticated, and well-educated members of society. Additionally, synonyms for "tag, rag, and bobtail" could include "rabble," "underclass," or "plebeians." By using these more specific terms, a writer could convey a more nuanced understanding of the different social strata present in society.