Term used during the 1920s for young women trying to appear sophisticated in dress and behavior?

The term used during the 1920s for young women trying to appear sophisticated in dress and behavior was flapper.

Flappers were known for their short bobbed hair, short skirts, loose-fitting dresses, smoking and drinking, and a general disregard for traditional social norms. They were considered rebellious and modern, embodying the spirit of the Roaring Twenties.