How old are you? I suspect that you must be under 60 or you wouldn't have written: "Jackie was fascinating, but she was hardly what you would call a fashion provocateur. Glam and elegant in a socialitey way, oui! But fashionable? Barely. Jackie’s style was appropriate but prissy..."

Jackie Kennedy, at the time, was the opposite of prissy. The Republican Grande Dames that preceded her dressed like our mothers. Jackie dressed in what at the time was considered much more casual (read this as "not frumpy).