medieval
adj.adj. relating to the Middle Ages, the period in European history between roughly 500 and 1500 AD. You use it to describe things like knights, castles, and old stone churches.
adj. pertaining to the Middle Ages, specifically the period of European history from the collapse of the Western Roman Empire to the dawn of the Renaissance. Often used figuratively to describe something primitive or outdated.
The museum has a large collection of medieval armor.
Historians study medieval manuscripts to understand how people lived during the fourteenth century.
The city's medieval architecture remains remarkably intact, providing a stark contrast to the glass and steel of the modern financial district.
Usually capitalized in British English, though lowercase is increasingly common in American English. Often functions as a non-gradable adjective when referring to the historical period.