What term refers to design characteristics that are popular at a specific point in time?

The term that refers to design characteristics that are popular at a specific point in time is 'Fashion.' Fashion encompasses the styles, trends, and aesthetics that are widely accepted and adopted by a society during a certain period. It is a broad term that captures the essence of what is considered stylish at any given moment.

This concept includes not only clothing but also extends to accessories, hairstyles, and even the overall visual culture of a time. Fashion is often influenced by various factors, including social movements, cultural moments, and influential figures in society. It reflects current preferences and the zeitgeist, making it an important aspect of consumer behavior and choice.

In contrast, while 'Style' and 'Trends' may share some similarities with fashion, they do not encapsulate its full meaning. Style refers more to individual expression and personal choices in design, while trends indicate the direction in which fashion is moving. Accessories, on the other hand, are specific items that complement outfits within the realm of fashion but do not define it as a whole.