The term "Glorious Revolution" refers to the events of 1688 in England when William of Orange, a Protestant, was invited by Parliament to invade England and depose King James II, a Catholic. The revolution is often termed "glorious" because it resulted in relatively bloodless and smooth political change, with minimal violence compared to many other revolutions. The Glorious Revolution had underlying religious and political tensions. England had a long history of conflict between Protestants and Catholics, and the fear of a return to Catholic rule under James II led to opposition. The desire for a Protestant monarch and the defense of Protestantism were significant factors in the political and social dynamics of the time. While religion played a role, the Glorious Revolution was not solely about religious issues. It was also a struggle between the monarchy and Parliament over the balance of power. The supporters of William of Orange included not only Protestants but also some Whigs and Tories who were concerned about the authority of the monarchy and the protection of parliamentary rights. The term "Glorious Revolution" was coined to highlight the perceived success and relatively peaceful nature of the transition of power. It marked a pivotal moment in English history, as it established the supremacy of Parliament over the monarchy and laid the foundation for constitutional monarchy in England.

When talking about a word or phrase, rather than using it according to its actual meaning, you need to put it in quotes. Thus your question needs to be posed this way: Why is the "glorious revolution" called "glorious"....? Sorry, I don't know the answer.