Read this: The war has been described as the first "world war", although this label was also given to various earlier conflicts like the Eighty Years' War, the Thirty Years' War, the War of the Spanish Succession and the War of the Austrian Succession, and to later conflicts like the Napoleonic Wars. The term "Second Hundred Years' War" has been used in order to describe the almost continuous level of world-wide conflict during the entire 18th century, reminiscent of the more famous and compact struggle of the 14th century.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What is the grandest label that historians have used to describe the  Seven Years' War?
The war has been described as the first "world war"