Final answer:
The major characteristic of Dior's New Look is its emphasis on femininity, characterized by nipped-in waists and full skirts.
Step-by-step explanation:
The major characteristic of Dior’s New Look is femininity. Introduced in 1947, this fashion style marked a departure from the more masculine, utility-focused clothing that was prevalent during World War II. The New Look emphasized hourglass silhouettes, featuring nipped-in waists and full skirts, which highlighted a woman's figure. It became iconic for its elegance and the way it celebrated the female form at a time when fashion was transitioning away from wartime austerity. As the New Look which was introduced by Christian Dior emphasized an hourglass shape with a defined waist, full skirts, and soft, feminine silhouettes the correct option will be feminity.